Update documentation and other files (#28)

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

Author: 47erbot

AUTHORS.md

@@ -8,7 +8,6 @@
 
 The maintainers of the project are:
 
-- [![47erbot](https://avatars1.githubusercontent.com/u/24799081?v=4&s=20) **47erbot**](https://github.com/47erbot)
 - [![angoglez](https://avatars0.githubusercontent.com/u/10107285?v=4&s=20) **Ana Gómez González (angoglez)**](https://github.com/angoglez)
 - [![anamariamv](https://avatars0.githubusercontent.com/u/2183589?v=4&s=20) **Ana Mª Marquez (anamariamv)**](https://github.com/anamariamv)
 - [![kiroco12](https://avatars1.githubusercontent.com/u/48894338?v=4&s=20) **Enrique Nieto (kiroco12)**](https://github.com/kiroco12)
@@ -23,5 +22,4 @@ These are the people that have contributed to the _exercises-template_ project:
 - [![jdesiloniz](https://avatars2.githubusercontent.com/u/2835739?v=4&s=20) **jdesiloniz**](https://github.com/jdesiloniz)
 - [![kiroco12](https://avatars1.githubusercontent.com/u/48894338?v=4&s=20) **kiroco12**](https://github.com/kiroco12)
 - [![anamariamv](https://avatars0.githubusercontent.com/u/2183589?v=4&s=20) **anamariamv**](https://github.com/anamariamv)
-- [![angoglez](https://avatars0.githubusercontent.com/u/10107285?v=4&s=20) **angoglez**](https://github.com/angoglez)
-- [![47erbot](https://avatars1.githubusercontent.com/u/24799081?v=4&s=20) **47erbot**](https://github.com/47erbot)
+- [![angoglez](https://avatars0.githubusercontent.com/u/10107285?v=4&s=20) **angoglez**](https://github.com/angoglez)