Fix Spelling Errors

[Harshil-Jani]

This is an Open Issue. I made a lot of spelling mistakes while typing. I know some of them already exists on the site, But I am lazy enough to not fix those spelling mistakes. If you are willing to read my GSOC book and want to contribute as an early steps or anyway just make contributions then I welcome you to fix my spell errors and directly make a PR.

In case you don't know how to PR ( Just google it anyways) Also, If you find some difficulty for which file to change then Let me bring to your notice that you must change only the .md files and make a PR. Let's not worry about those things here, Once there is a PR, We can stretch the discussion based on your understanding.

[Harshil-Jani]

Just a quick update ! I have added CodeSpell as Github Action into the repo. So, It will write over the changes. Still there is always a scope of improvement so I am keeping issue open in case you spot any mistakes. Cheers !!