Typo in ./docs/index.rst - https://github.com/google/open-source-pdks link is broken

[mkkassem]

Expected Behavior

Link to open-source-pdks should point to https://github.com/google/open-source-pdks

Actual Behavior

Link to open-source-pdks should point to https://github.com/google/open(s)-source-pdks

Steps to Reproduce the Problem

1. https://open-source-pdks.readthedocs.io/en/latest/
2. go to the last line "The source of the documentation can be found at https://github.com/google/opens-source-pdks"
3. press the link

Specifications

• Version:
• Platform: