Update CONTRIB.md

Author: vbrodsky

CONTRIB.md

@@ -63,4 +63,19 @@ Each release should follow the following steps:
 6. This will kick off a Github Actions workflow that will:
   - Build the library in the [standard way](https://packaging.python.org/tutorials/packaging-projects/#generating-distribution-archives)
   - Upload the distribution archives in the [standard way](https://packaging.python.org/tutorials/packaging-projects/#uploading-the-distribution-archives)
-  with credentials for the `labelbox` PyPI user.
+  with credentials for the `labelbox` PyPI user.
+  
+  ## Running Jupyter Notebooks
+  
+  We have plenty of code samples in the examples/ directory and using them for testing can help us increase our productivity. One way to use jupyter notebooks is to run the jupyter server locally (another way is to use a VSC plugin, not documented here). It works really fast.
+  
+  Make sure your notebook will use your source code:
+  1. `ipython profile create`
+  2. `ipython locate` - will show where the config file is. This is the config file used by the jupyter server, since it runs via ipython
+  3. Open the file (this should be ipython_config.py and it is usually located in ~/.ipython/profile_default) and add the following line of code: 
+  ```
+  c.InteractiveShellApp.exec_lines = [
+    'import sys; sys.path.insert(0, "<labelbox-python root folder>")'
+  ]
+  4. Go to the root of your project and run `jupyter notebook` to start the server
+  5.