Add documentation

README.md

@@ -26,6 +26,15 @@ Browser has a subproject of re-usable components bundled together and exposed as
 
 ## Development
 
+> There are 2 parts within this project
+> 
+> 1. [browser](./src/browser)
+> 2. re-usable graphing library, i.e. [neo4j-arc](./src/neo4j-arc)
+>
+> Each mantains a separate TS version. **Browser's TS version has to align with neo4j-arc's by setting a fixed version
+> at latter's lower bound**. For example, if neo4j-arc's typescript version is `"typescript": "^4.6.2"`, then the
+> browser's has be to the exact version of `"typescript": "4.6.2"`
+
 Running Neo4j Browser locally requires Node.js 16 and for dependencies we use yarn (`npm install -g yarn`). To install 
 dependencies and then start the development server at `http://localhost:8080`: