diff --git a/README.md b/README.md
index 96a6642..f86b00c 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,18 @@
 
 > todo: kristof some content does not belong here, move to other repo
 
+## To preview new changes on local browser
+
+1. Pull new changes from local
+
+(please make sure commit / save your local changes first )
+
+hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/heroscript/nameofyourbook -gp
+
+2. Build the book locally
+
+hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/heroscript/nameofyourbook
+
+3. Preview on web browser
+
+hero mdbook -u https://git.ourworld.tf/tfgrid/info_tfgrid/src/branch/main/heroscript/nameofyourbook -o
\ No newline at end of file