Readme and gitignore additions

[Ghamza-Jd]

Why:

• No need to have package-lock.json or yarn.lock in the repo
• Adding jsx after the triple backticks will color the code in the readme

Checklist:

• [x] Tests
• [x] Ready to be merged

[codecov[bot]]

Codecov Report

Merging #4 into master will not change coverage. The diff coverage is n/a.

@@            Coverage Diff            @@
##            master        #4   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files            3         3           
  Lines           28        28           
  Branches         7         7           
=========================================
  Hits            28        28           

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[moh3n9595]

Thanks for contributing to the project. Well done @Hamza-Jd ! I appreciate it if you check the below issue and change your PR a bit.

• I believe that package-lock.json needs to be there. (more info)

[Ghamza-Jd]

@moh3n9595 agree with keeping the lock files 👍 , I've updated the PR.