Fix formatting in README for clarity and consistency

Author: tmaier-kettering

IMPLEMENTATION_SUMMARY.md

@@ -5,8 +5,8 @@ CodebookAI is a tool designed to assist qualitative researchers in processing la
 
 ## Getting Started
 
-- CodebookAI required you to supply an OpenAI API key in the Settings (File > Settings) ([Get one here](https://platform.openai.com/api-keys)). This keeps CodebookAI open-source and free to use. You control your own API key and are responsible for any costs incurred through your usage of OpenAI's services.
 - Download the latest .exe ([Get one here](https://github.com/tmaier-kettering/CodebookAI/releases)). This is a standalone application that does not require installation. Just double-click to run. Only tested on Windows 10.
+- CodebookAI required you to supply an OpenAI API key in the Settings (File > Settings) ([Get one here](https://platform.openai.com/api-keys)). This keeps CodebookAI open-source and free to use. You control your own API key and are responsible for any costs incurred through your usage of OpenAI's services.
 - Not sure what CodebookAI can do? Check out the [Example](wiki/Example/Example.md) section.
 
 ## Help & Documentation