gh-148 adding devp2p section

[raa-dev]

• devp2p section added into the sidebar
• devp2p page and it's scaffoling added

[github-actions]

Hi @raa-dev,

Following typos were found in the pull request:

• 📄 ./docs/wiki/EL/el-specs.md:
  1. emptyset
  2. emptyset
  3. emptyset
  4. emptyset

ℹ️ Here's how to fix them:

• Fix typos: Open the relevant files and fix any identified typos.
• Update wordlist: If a flagged word is actually a project-specific term add it to wordlist.txt in the project root.
  Each word should be listed on a separate line. Learn more.
• 🚧 Remember:
  • When adding new words it MUST NOT have any spaces or special characters within or around it.
  • wordlist is NOT case sensitive.
  • Use backticks to quote code variables so as to not bloat the wordlist.