fix(container): removing unneeded shared network dependency, minor doc updates

Author: RembrandtK

.devcontainer/README.md

@@ -61,14 +61,14 @@ When the container starts, the `project-setup.sh` script will automatically run
 - Set up symlinks for package cache directories
 - Install project dependencies using yarn
 - Configure Git to use SSH signing with your forwarded SSH key
-- Source shell customizations if available in PATH (currently depends on base image configuration)
+- Source shell customizations if available in PATH
 
 ## Environment Variables
 
 Environment variables are defined in two places:
 
 1. **docker-compose.yml**: Contains most of the environment variables for tools and caching
-2. **Environment File**: Personal settings are stored in `/opt/configs/graphprotocol/contracts.env`
+2. **Environment File**: Personal settings are stored in `/opt/configs/graphprotocol/contracts.env` on the host
 
 ### Git Configuration
 

.devcontainer/docker-compose.yml

@@ -38,8 +38,6 @@ services:
       - PIP_CACHE_DIR=/cache/pip
       - PYTHONPYCACHEPREFIX=/cache/pycache
       - PYTHONDONTWRITEBYTECODE=1
-    networks:
-      - shared
     volumes:
       # Mount cache directory
       - /cache:/cache
@@ -56,7 +54,3 @@ services:
       - /cache/vscode-config:/home/vscode/.config
       - /cache/vscode-data:/home/vscode/.local/share
       - /cache/vscode-bin:/home/vscode/.local/bin
-
-networks:
-  shared:
-    external: true