Broken link to Contributing Guidelines in README.md

### Describe the bug

### To Reproduce
Steps to reproduce the behavior:
Update the below:
Change
1. Make sure contributors are respecting the (https://github.com/anitab-org/anitab-org.github.io/blob/develop/CONTRIBUTING.md). If they don't let them know about it: what is missing, what was disrespected?

to

2. Make sure contributors are respecting the (https://github.com/anitab-org/documentation/blob/master/ways-to-contribute.md). If they don't let them know about it: what is missing, what was disrespected?

### Expected behavior

### Screenshots

### Desktop (please complete the following information):
- OS: [e.g. iOS]
- Browser [e.g. chrome, safari]
- Version [e.g. 22]

### Smartphone (please complete the following information):
- Device: [e.g. iPhone6]
- OS: [e.g. iOS8.1]
- Browser [e.g. stock browser, safari]
- Version [e.g. 22]

### Additional context