Update README.md with development info

README.md

@@ -1 +1,24 @@
 # API Wrapper Boilerplate
+
+## Example Code
+The example code in `main.py` uses the [JSONPlaceholder](https://jsonplaceholder.typicode.com/) demo API, which
+is a great resource for learning how to work with JSON based REST APIs.
+
+The example code also demonstrates how the wrapper will raise exceptions by initializing the `ApiWrapper` with
+a broken proxy.
+
+## Development
+The ApiWrapper class includes private class convenience methods that utilize the internal `requests.Session`
+object to persist session data across all API requests. When developing public methods, use the appropriate
+convenience methods:
+- `self.__get`
+- `self.__post`
+- `self.__put`
+- `self.__delete`
+
+## Error Handling
+The ApiWrapper class defines custom exceptions for handling API request and response errors.
+- ApiRequestException is raised when there is an issue with the API request.
+- InvalidApiResponse is raised when the API response is not a valid JSON. 
+
+You can catch these exceptions and handle them accordingly in your code.