Update the 21/WAKU2-FAULT-TOLERANT-STORE status to deleted. Added to the
deprecated folder, but actual status must be deleted as only stable RFC
can be deprecated.
# What does this PR resolve? 🚀
- Changes title inside Waku/README.md from h2 to h1
- Changes title inside Waku/Deprecated/README.md from h2 to h1
# Details 📝
The syntax for the title of the markdown seems to not be proper one
comparing to other README documents.
It's important to define titles with h1(#) to be able to parse it
properly later on by the website
