message: Update link in VS Code README
  * Update link in VS Code README
  Update a broken link and move the config link into the configuration section
  * Remove link to config docs
diff: ## Features
  -- Loads your GraphQL schemas and queries automatically from an [Apollo Config](https://www.apollographql.com/docs/resources/apollo-config.html) file
  - Adds syntax highlighting for GraphQL files and `gql` templates inside JavaScript files
  - Code-completes fields, arguments, types, and variables in your queries
  - Detects and loads client side schemas and validates client side field usage in operations
  