docs: updated added time breakdown down for practicing 300 hrs

[nemessisc]

Pre-Submission Checklist

• Your pull request targets the staging branch of freeCodeCamp.
• Branch starts with either fix/, feature/, or translate/ (e.g. fix/signin-issue)
• You have only one commit (if not, squash them into one commit).
• All new and existing tests pass the command npm test. Use git commit --amend to amend any fixes.

Type of Change

• Small bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds new functionality)
• Breaking change (fix or feature that would change existing functionality)
• Add new translation (feature adding new translations)

Checklist:

• Tested changes locally.
• Addressed currently open issue (replace XXXXX with an issue no in next line)

Closes #XXXXX

Description

[nemessisc]

added time brake down for the so stated 300 hours people need to practice code in. In order to make the task more doable for those starting to code.

[raisedadead]

Hi @nemesiscontreras

Thanks for the pull request, all the verbiage on the README has been carefully created by @QuincyLarson to cater to a wide range of our audience. Not specifically for anyone.

I believe this change is not required.

Thanks a lot for taking the time to make this PR.