Add README.md file for update-all

[netschwarz]

Description

Issue Solved

Type of Change

• Adding a new entry
• Editing an existing entry (fixing a typo, bug, issues, etc)
• Updating the documentation

Checklist

• All writings are my own.
• My entry follows the Codecademy Docs style guide.
• My changes generate no new warnings.
• I have performed a self-review of my own writing and code.
• I have checked my entry and corrected any misspellings.
• I have made corresponding changes to the documentation if needed.
• I have confirmed my changes are not being pushed from my forked main branch.
• I have confirmed that I'm pushing from a new branch named after the changes I'm making.
• I have linked any issues that are relevant to this PR in the Issues Solved section.

[CLAassistant]

Thank you for your submission! We really appreciate it. Like many open source projects, we ask that you all sign our Contributor License Agreement before we can accept your contribution.
1 out of 2 committers have signed the CLA.

✅ mamtawardhani
❌ netschwarz
_{You have signed the CLA already but the status is still pending? Let us recheck it.}

[mamtawardhani]

Hey @netschwarz, the entry looks good to me, just one small change is required. Could you please remove the README.md file from this branch? Thank you!

[mamtawardhani]

Please also sign the CLA @netschwarz