Update README.md

Updated readme file.

README.md

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 # weather-lookup-tool
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 - This simple tool uses Python and an API from openweathermap.org to look up basic weather information (e.g., current temperature, humidity, high/low temperature, etc.) using a country code and zip-code. <br>
 
-- This code was based off of/adapted from a YouTube tutorial produced by LeMaster Tech at this link: https://youtu.be/kLNtdehfNrI.  
+- My code is based off of/adapted from a YouTube tutorial produced by LeMaster Tech at this link: https://youtu.be/kLNtdehfNrI.  
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+- I believe this was a great beginner’s project for getting started with learning how to use APIs in Python.
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+- While completing this project, I also learned how to hide API keys using the dotenv Python module and .gitignore/.env files. (See this YouTube video from Jonathan Soma for a good explanation on using the dotenv Python module: https://youtu.be/YdgIWTYQ69A).