Add awesome-cl

For Common Lisp

Awesome-cl was added (8236f1a0fe), then removed (c498a38916), and now hopefully re-added to the list.

I've taken over maintenance on the repo and moved it back to GitHub.

readme.md

@@ -70,6 +70,7 @@ If you want to contribute, please read the [contribution guidelines](contributin
 - [C/C++](https://github.com/fffaraz/awesome-cpp)
 - [R](https://github.com/qinwf/awesome-R)
 - [D](https://github.com/zhaopuming/awesome-d)
+- [Common Lisp](https://github.com/CodyReichert/awesome-cl)
 - [Perl](https://github.com/hachiojipm/awesome-perl)
 - [Groovy](https://github.com/kdabir/awesome-groovy)
 - [Dart](https://github.com/yissachar/awesome-dart)