Add new snippets to Readme.md

[mo2l]

In the progress of Hacktoberfest several new snippets have been added. Those need to be added to the README.md file as well.

[mo2l]

@dalenguyen this might swell be a great Issue for Beginners and Hacktoberfest :)

[dalenguyen]

@mo2l was planning to add this. Great suggestion though :D