Rename repo to match renamed guide, and set port to 3000 now that guide uses Smee instead of ngrok

Author: sarahs

api/ruby/build-your-first-github-app/Gemfile renamed to api/ruby/building-your-first-github-app/Gemfile

@@ -14,6 +14,6 @@ Both commands will run the server at `localhost:4567`.
 
 ## History
 
-The original author is @DEGoodmanWilson, and the original location is https://github.com/DEGoodmanWilson/app-boilerplate.
+The original author is @DEGoodmanWilson, and the original source is https://github.com/DEGoodmanWilson/app-boilerplate.
 
 The @github/product-docs-ecosystem team ported the code here and added `advanced_server.rb` while editing the guide before publishing it.

api/ruby/build-your-first-github-app/Gemfile.lock renamed to api/ruby/building-your-first-github-app/Gemfile.lock

@@ -6,6 +6,8 @@
 require 'jwt'
 require 'time' # This is necessary to get the ISO 8601 representation of a Time object
 
+set :port, 3000
+
 #
 #
 # This is a customized server for the GitHub App you can build by following

api/ruby/build-your-first-github-app/README.md renamed to api/ruby/building-your-first-github-app/README.md

@@ -6,6 +6,8 @@
 require 'jwt'
 require 'time' # This is necessary to get the ISO 8601 representation of a Time object
 
+set :port, 3000
+
 #
 #
 # This is a boilerplate server for your own GitHub App. You can read more about GitHub Apps here: