diff --git a/lib/threefold/grid4/datamodel/README.md b/lib/threefold/grid4/datamodel/README.md
index 395e804c..fa974acb 100644
--- a/lib/threefold/grid4/datamodel/README.md
+++ b/lib/threefold/grid4/datamodel/README.md
@@ -6,99 +6,99 @@ This module defines data models for nodes, groups, slices in a cloud/grid infras
 
 Represents a single node in the grid with slices, devices, and capacity.
 
-| Field          | Type              | Description |
-|----------------|-------------------|-------------|
-| id             | int               | Unique node ID |
-| nodegroupid    | int               | ID of the owning node group |
-| uptime         | int               | Uptime percentage (0-100) |
-| computeslices  | []ComputeSlice    | List of compute slices |
-| storageslices  | []StorageSlice    | List of storage slices |
-| devices        | DeviceInfo        | Hardware device info (storage, memory, etc.) |
-| country        | string            | 2-letter country code |
-| capacity       | NodeCapacity      | Aggregated hardware capacity |
-| provisiontime  | u32               | Provisioning time (simple/compatible format) |
+| Field         | Type           | Description                                  |
+| ------------- | -------------- | -------------------------------------------- |
+| id            | int            | Unique node ID                               |
+| nodegroupid   | int            | ID of the owning node group                  |
+| uptime        | int            | Uptime percentage (0-100)                    |
+| computeslices | []ComputeSlice | List of compute slices                       |
+| storageslices | []StorageSlice | List of storage slices                       |
+| devices       | DeviceInfo     | Hardware device info (storage, memory, etc.) |
+| country       | string         | 2-letter country code                        |
+| capacity      | NodeCapacity   | Aggregated hardware capacity                 |
+| provisiontime | u32            | Provisioning time (simple/compatible format) |
 
 ## NodeGroup
 
 Represents a group of nodes owned by a farmer, with policies.
 
-| Field                  | Type          | Description |
-|------------------------|---------------|-------------|
-| id                     | u32           | Unique group ID |
-| farmerid               | u32           | Farmer/user ID |
-| secret                 | string        | Encrypted secret for booting nodes |
-| description            | string        | Group description |
-| slapolicy              | SLAPolicy     | SLA policy details |
-| pricingpolicy          | PricingPolicy | Pricing policy details |
-| compute_slice_normalized_pricing_cc | f64 | Pricing per 2GB compute slice in cloud credits |
-| storage_slice_normalized_pricing_cc | f64 | Pricing per 1GB storage slice in cloud credits |
-| reputation             | int           | Reputation (0-100) |
-| uptime                 | int           | Uptime (0-100) |
+| Field                               | Type          | Description                                    |
+| ----------------------------------- | ------------- | ---------------------------------------------- |
+| id                                  | u32           | Unique group ID                                |
+| farmerid                            | u32           | Farmer/user ID                                 |
+| secret                              | string        | Encrypted secret for booting nodes             |
+| description                         | string        | Group description                              |
+| slapolicy                           | SLAPolicy     | SLA policy details                             |
+| pricingpolicy                       | PricingPolicy | Pricing policy details                         |
+| compute_slice_normalized_pricing_cc | f64           | Pricing per 2GB compute slice in cloud credits |
+| storage_slice_normalized_pricing_cc | f64           | Pricing per 1GB storage slice in cloud credits |
+| reputation                          | int           | Reputation (0-100)                             |
+| uptime                              | int           | Uptime (0-100)                                 |
 
 ## NodeSim
 
 Extends Node for simulation purposes with cost.
 
-| Field | Type | Description |
-|-------|------|-------------|
-| ( Embeds Node ) | - | All Node fields |
-| cost  | f64  | Simulation cost (free in some contexts) |
+| Field           | Type | Description                             |
+| --------------- | ---- | --------------------------------------- |
+| ( Embeds Node ) | -    | All Node fields                         |
+| cost            | f64  | Simulation cost (free in some contexts) |
 
 ## ComputeSlice
 
 Represents a compute slice (e.g., 1GB memory unit).
 
-| Field                       | Type          | Description |
-|-----------------------------|---------------|-------------|
-| nodeid                      | u32           | Owning node ID |
-| id                          | int           | Slice ID in node |
-| mem_gb                      | f64           | Memory in GB |
-| storage_gb                  | f64           | Storage in GB |
-| passmark                    | int           | Passmark score |
-| vcores                      | int           | Virtual cores |
-| cpu_oversubscription        | int           | CPU oversubscription ratio |
-| storage_oversubscription    | int           | Storage oversubscription ratio |
-| price_range                 | []f64         | Price range [min, max] |
-| gpus                        | u8            | Number of GPUs |
-| price_cc                    | f64           | Price per slice in cloud credits |
-| pricing_policy              | PricingPolicy | Pricing policy |
-| sla_policy                  | SLAPolicy     | SLA policy |
+| Field                    | Type          | Description                      |
+| ------------------------ | ------------- | -------------------------------- |
+| nodeid                   | u32           | Owning node ID                   |
+| id                       | int           | Slice ID in node                 |
+| mem_gb                   | f64           | Memory in GB                     |
+| storage_gb               | f64           | Storage in GB                    |
+| passmark                 | int           | Passmark score                   |
+| vcores                   | int           | Virtual cores                    |
+| cpu_oversubscription     | int           | CPU oversubscription ratio       |
+| storage_oversubscription | int           | Storage oversubscription ratio   |
+| price_range              | []f64         | Price range [min, max]           |
+| gpus                     | u8            | Number of GPUs                   |
+| price_cc                 | f64           | Price per slice in cloud credits |
+| pricing_policy           | PricingPolicy | Pricing policy                   |
+| sla_policy               | SLAPolicy     | SLA policy                       |
 
 ## StorageSlice
 
 Represents a 1GB storage slice.
 
-| Field            | Type          | Description |
-|------------------|---------------|-------------|
-| nodeid           | u32           | Owning node ID |
-| id               | int           | Slice ID in node |
-| price_cc         | f64           | Price per slice in cloud credits |
-| pricing_policy   | PricingPolicy | Pricing policy |
-| sla_policy       | SLAPolicy     | SLA policy |
+| Field          | Type          | Description                      |
+| -------------- | ------------- | -------------------------------- |
+| nodeid         | u32           | Owning node ID                   |
+| id             | int           | Slice ID in node                 |
+| price_cc       | f64           | Price per slice in cloud credits |
+| pricing_policy | PricingPolicy | Pricing policy                   |
+| sla_policy     | SLAPolicy     | SLA policy                       |
 
 ## NodeCapacity
 
 Aggregated hardware capacity for a node.
 
-| Field        | Type | Description |
-|--------------|------|-------------|
-| storage_gb   | f64  | Total storage in GB |
-| mem_gb       | f64  | Total memory in GB |
-| mem_gb_gpu   | f64  | Total GPU memory in GB |
-| passmark     | int  | Total passmark score |
-| vcores       | int  | Total virtual cores |
+| Field      | Type | Description            |
+| ---------- | ---- | ---------------------- |
+| storage_gb | f64  | Total storage in GB    |
+| mem_gb     | f64  | Total memory in GB     |
+| mem_gb_gpu | f64  | Total GPU memory in GB |
+| passmark   | int  | Total passmark score   |
+| vcores     | int  | Total virtual cores    |
 
 ## NodeInfo
 
 Descriptive info for a node (used in aggregations).
 
-| Field        | Type   | Description |
-|--------------|--------|-------------|
-| cpu_brand    | string | CPU brand |
-| cpu_version  | string | CPU version |
-| mem          | string | Memory description |
-| hdd          | string | HDD description |
-| ssd          | string | SSD description |
-| url          | string | Info URL |
-| continent    | string | Continent code |
-| country      | string | Country code |
+| Field       | Type   | Description        |
+| ----------- | ------ | ------------------ |
+| cpu_brand   | string | CPU brand          |
+| cpu_version | string | CPU version        |
+| mem         | string | Memory description |
+| hdd         | string | HDD description    |
+| ssd         | string | SSD description    |
+| url         | string | Info URL           |
+| continent   | string | Continent code     |
+| country     | string | Country code       |