Date stamp Docs

[EdJones]

Make sure to check the existing issues in this repository

Please, tell us what's the problem?

[ ] A typo
[ ] Wrong documentation
[ ] Improvement of existing article
[x] Missing documentation
[ ] New article needed

Please, tell us more details

It's hard to be sure if docs are current. For example, I'm setting up Android build/test process on Windows for the first time. And I'm inclined to wonder if adoptopenjdk --version 8.192 is the correct version. A somewhat fresh date stamp would reassure me, and save bothering people on Slack.

[avats-dev]

Hii, if anyone could guide me in implementing this, I would love to add this. Thanks.