Merge branch 'main' into ken/key-search-results

Author: ken-zlai

frontend/README.md

@@ -25,10 +25,17 @@ The frontend for Chronon.
    ```
 
 3. Install dependencies:
+
    ```bash
    npm install
    ```
 
+4. Create `.env` file in frontend directory with the follow
+
+   ```
+   API_BASE_URL=http://localhost:9000
+   ```
+
 ### Development
 
 To start the development server: