updated smaller collections for manual

collections/developers/internals/zos/manual/network/readme.md

@@ -0,0 +1,14 @@
+# `network` type
+Private network can span multiple nodes at the same time. Which means workloads (`VMs`) that live (on different node) but part of the same virtual network can still reach each other over this `private` network.
+
+If one (or more) nodes are `public access nodes` you can also add your personal laptop to the nodes and be able to reach your `VMs` over `wireguard` network.
+
+In the simplest form a network workload consists of:
+- network range
+- sub-range available on this node
+- private key
+- list of peers
+  - each peer has public key
+  - sub-range
+
+Full network definition can be found [here](https://github.com/threefoldtech/zos/blob/main/pkg/gridtypes/zos/network.go)