README.md - Additions and contribution guidelines

Additions to README to add text and contrib guidelines. Also meant to trigger off the recently introduced checks :)

Author: mskadu

README.md

@@ -1,2 +1,11 @@
 # power-shell-scripts
-A set of Power Shell Scripts I have developed/ improved
+
+Power Shell Scripts is a repository of Powershell Scripts I have developed/ improved over time.
+
+Please do not hestitate to submit PR<sup>[?](https://www.youtube.com/watch?v=_NrSWLQsDL4)</sup>s with any improvements/ corrections
+
+## Contribution guidelines
+If you do decide to contribute to my repository - to begin with, **Thanks**! You will need to ensure that your submissions follow the guidelines below in order for me to be able to accept you PR.
+
+### Keep your code valid!
+Any code submissions via PRs are checked for validity using the Github actions [Hound](https://github.com/marketplace/hound) and [PSScriptAnalyzer checks](https://github.com/marketplace/actions/psscriptanalyzer-checks). Together they ensure that there are no validation errors in both Markdown and PowerShell content in any new content. The latter also ensures that best practices recommended by the [PowerShell Team](https://www.powershellgallery.com/profiles/PowerShellTeam) are also being followed.