Update documentation and other files (#186)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

AUTHORS.md

@@ -35,13 +35,13 @@ These are the people that have contributed to the _exercises-stdlib_ project:
 - [![dominv](https://avatars1.githubusercontent.com/u/3943031?v=4&s=20) **dominv**](https://github.com/dominv)
 - [![jdesiloniz](https://avatars2.githubusercontent.com/u/2835739?v=4&s=20) **jdesiloniz**](https://github.com/jdesiloniz)
 - [![aseigneurin](https://avatars3.githubusercontent.com/u/4038960?v=4&s=20) **aseigneurin**](https://github.com/aseigneurin)
+- [![joelittlejohn](https://avatars3.githubusercontent.com/u/686384?v=4&s=20) **joelittlejohn**](https://github.com/joelittlejohn)
 - [![laverboy](https://avatars0.githubusercontent.com/u/617565?v=4&s=20) **laverboy**](https://github.com/laverboy)
 - [![andyscott](https://avatars3.githubusercontent.com/u/310363?v=4&s=20) **andyscott**](https://github.com/andyscott)
 - [![etrain](https://avatars0.githubusercontent.com/u/1326181?v=4&s=20) **etrain**](https://github.com/etrain)
 - [![textPreferred](https://avatars2.githubusercontent.com/u/1721427?v=4&s=20) **textPreferred**](https://github.com/textPreferred)
 - [![jakzal](https://avatars3.githubusercontent.com/u/190447?v=4&s=20) **jakzal**](https://github.com/jakzal)
 - [![josephpconley](https://avatars3.githubusercontent.com/u/1165287?v=4&s=20) **josephpconley**](https://github.com/josephpconley)
-- [![joelittlejohn](https://avatars3.githubusercontent.com/u/686384?v=4&s=20) **joelittlejohn**](https://github.com/joelittlejohn)
 - [![jonboiser](https://avatars2.githubusercontent.com/u/10248067?v=4&s=20) **jonboiser**](https://github.com/jonboiser)
 - [![Samehadar](https://avatars2.githubusercontent.com/u/15636676?v=4&s=20) **Samehadar**](https://github.com/Samehadar)
 - [![kjhoerr](https://avatars3.githubusercontent.com/u/13242722?v=4&s=20) **kjhoerr**](https://github.com/kjhoerr)