added a description of layout alignments

[sidforreal]

Covered all the major information about the layout-align.

Replace this sentence with a brief description of the awesome changes your PR has. 😊

---

✅️ By submitting this PR, I have verified the following:

• [x] Added descriptive name to PR
  • Your PR should NOT be called Update index.md, since it does not help the maintainer understand what has been changed.
  • For example, if you create a Variables article inside the Python directory, the pull request title should be Python: add Variables article.
  • Additional PR title examples:
  • Git: edit Git Commit article
  • PHP: create PHP section and add Data Structures article
• [x] Reviewed necessary formatting guidelines in CONTRIBUTING.md.
• [x] No plagiarized, duplicate, or repetitive content that has been directly copied from another source.

[ezioda004]

Hi @SiddharthVarshney, A substantial amount of your article has been copied from this article. Please always cite your sources, we do not condone any kind of plagiarism. I'll be closing this PR and marking it invalid.