fixes #961
Merge branch 'master' of github.com:vhf/free-programming-books
Merge branch 'master' of github.com:vhf/free-programming-books
fixes #949
fixes #947 thank you @hanleilei
Merge pull request #983 from borgified/fix_947

fixes #947 thank you @hanleilei
Merge branch 'fix_949' of github.com:borgified/free-programming-books into borgified-fix_949

Conflicts:
	free-programming-books.md
Merge branch 'borgified-fix_949'
Add Practicing Ruby as a resource

Although not technically a book, these resources on how Ruby works is very detailed and a good way to dig deeper into Ruby.
Merge pull request #987 from nickborromeo/patch-1

Add Practicing Ruby as a resource
Merge branch 'master' of github.com:vhf/free-programming-books
Alphabetizing and following Contributing.md
@hanleilei tnx - #950 - [zh] - Perl init
.editorconfig init
typo