Update character casing for create-env-json

Author: schdck

README.md

@@ -195,7 +195,7 @@ Set up your GitHub Actions workflow with a specific version of your programming
 - [Programmatically set environment variables for use in subsequent steps](https://github.com/allenevans/set-env)
 - [Install Conda environments for Python](https://github.com/goanpeca/setup-miniconda)
 - [Setup NativeScript](https://github.com/hrueger/setup-nativescript)
-- [Create a JSON environment file](https://github.com/schdck/create-env-json)
+- [Create a JSON Environment File](https://github.com/schdck/create-env-json)
 
 #### Dependencies