docs: update ruby version requirement

README.md

@@ -18,7 +18,7 @@ Unless you wish to contribute to the project, we recommend using the hosted vers
 
 DevDocs is made of two pieces: a Ruby scraper that generates the documentation and metadata, and a JavaScript app powered by a small Sinatra app.
 
-DevDocs requires Ruby 2.6.0, libcurl, and a JavaScript runtime supported by [ExecJS](https://github.com/rails/execjs#readme) (included in OS X and Windows; [Node.js](https://nodejs.org/en/) on Linux). Once you have these installed, run the following commands:
+DevDocs requires Ruby 2.6.3, libcurl, and a JavaScript runtime supported by [ExecJS](https://github.com/rails/execjs#readme) (included in OS X and Windows; [Node.js](https://nodejs.org/en/) on Linux). Once you have these installed, run the following commands:
 
 ```
 git clone https://github.com/freeCodeCamp/devdocs.git && cd devdocs