🐙 github: remove Coder's Clan; https links

.github/contributing.md

@@ -2,15 +2,15 @@
 
 ### Reduced test case required
 
-All bug reports and problem issues require a [**reduced test case**](http://css-tricks.com/reduced-test-cases/). Create one by forking any one of the [CodePen examples](http://codepen.io/desandro/tag/isotope-docs) from [the docs](http://isotope.metafizzy.co).
+All bug reports and problem issues require a [**reduced test case**](https://css-tricks.com/reduced-test-cases/). Create one by forking any one of the [CodePen examples](https://codepen.io/desandro/tag/isotope-docs) from [the docs](https://isotope.metafizzy.co).
 
 **CodePens**
 
-+ [Filtering](http://codepen.io/desandro/pen/Ehgij)
++ [Filtering](https://codepen.io/desandro/pen/Ehgij)
-+ [Sorting](http://codepen.io/desandro/pen/lzCqe)
++ [Sorting](https://codepen.io/desandro/pen/lzCqe)
-+ [Filtering and sorting](http://codepen.io/desandro/pen/nFrte)
++ [Filtering and sorting](https://codepen.io/desandro/pen/nFrte)
-+ [Masonry layout](http://codepen.io/desandro/pen/mEinp)
++ [Masonry layout](https://codepen.io/desandro/pen/mEinp)
-+ [Fluid Masonry layout](http://codepen.io/desandro/pen/mIkhq)
++ [Fluid Masonry layout](https://codepen.io/desandro/pen/mIkhq)
 
 **Test cases**
 
@@ -20,20 +20,11 @@ All bug reports and problem issues require a [**reduced test case**](http://css-
 
 Providing a reduced test case is the best way to get your issue addressed. Without a reduced test case, your issue may be closed.
 
-## Support
-
-+ Having trouble setting up Isotope?
-+ Running into a time-consuming problem?
-
-[CodersClan has a dedicated support forum for Isotope](https://www.codersclan.net/?repo_id=1), where you can get personal support from experienced developers.
-
-#### [Get support on CodersClan](https://www.codersclan.net/?repo_id=1)
-
 ## Pull requests
 
 Contributions are welcome!
 
-Your code may be used as part of a commercial product if merged. Be clear about what license applies to your patch. [The MIT license](http://choosealicense.com/licenses/mit/) or [public domain unlicense](http://choosealicense.com/licenses/unlicense/) are permissive, and allow integration of your patch into Isotope as part of a commercial product.
+Your code may be used as part of a commercial product if merged. Be clear about what license applies to your patch. [The MIT license](https://choosealicense.com/licenses/mit/) or [public domain unlicense](https://choosealicense.com/licenses/unlicense/) are permissive, and allow integration of your patch into Isotope as part of a commercial product.
 
 Do not edit `dist/` files. I'll update these after your PR has been merged.
 

.github/issue_template.md

@@ -1,3 +1,3 @@
 <!-- Thanks for submitting an issue! All bug reports and problem issues require a **reduced test case**. Create one by forking any one of the CodePen examples from the docs. See guidelines link above. -->
 
-**Test case:** http://codepen.io/desandro/pen/mEinp
+**Test case:** https://codepen.io/desandro/pen/mEinp