Improve the readability of README

[LuisAlfredoNu]

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---

Context:
Update README file on base on my early experience with the code

Description of the Change:
Improve readability of the code, changing long peaces of text with lists. Added subtitles to make more split section. Remove CMake compile instructions because are confusing and it can made it by pip. Try to make more clear the installation instructions for Lightning Kokkos.

Benefits:
Easier and faster way to read the README.

Possible Drawbacks:

Related GitHub Issues:

[sc-71287]

[github-actions]

Hello. You may have forgotten to update the changelog!
Please edit .github/CHANGELOG.md with:

• A one-to-two sentence description of the change. You may include a small working example for new features.
• A link back to this PR.
• Your name (or GitHub username) in the contributors section.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 81.57%. Comparing base (ec9e340) to head (6ca6d57).
Report is 1 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (ec9e340) and HEAD (6ca6d57). Click for more details.

HEAD has 36 uploads less than BASE

Flag	BASE (ec9e340)	HEAD (6ca6d57)
	44	8

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #851       +/-   ##
===========================================
- Coverage   98.41%   81.57%   -16.85%     
===========================================
  Files         113       17       -96     
  Lines       18647     1916    -16731     
===========================================
- Hits        18352     1563    -16789     
- Misses        295      353       +58     

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[vincentmr]

Thanks @LuisAlfredoNu , looks good so far.

[maliasadi]

Thanks @LuisAlfredoNu!

[multiphaseCFD]

Thanks @LuisAlfredoNu ! Nice work. Just a few comments.

[vincentmr]

A couple suggestions but looks good overall.

[vincentmr]

LGTM!

[AmintorDusko]

Great work! Thank you for the extra updates! 🙂
Feel free to merge it after @isaacdevlugt merges the PR #848 content.

[maliasadi]

🥳