Fix script to run in bash

[kalfeher]

Description

fix env setting
use bash echo instead of zsh print.
remove zsh expansion flag
remove em dashes from code block examples in script README

Related Issue

Fixes #1045

Checklist

• [x ] I've tested my changes to ensure they are ready for review.
• [ x] I've read the CONTRIBUTING.md guide.
• [ x] I've updated the documentation (if applicable).
• Resource Graph queries have been included (and tested) for recommendations where ever possible¹.
• [ x] Resource Graph queries have NOT been included (please explain below).

No changes to resource graphs. The logic and construction of graph queries remains unchanged in the script

Additional Information

Script tested on both bash and zsh.

Reviewer Notes

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Footnotes

1. Details on how to add Azure Resource Graph queries to recommendations can be found here. ↩

[kalfeher]

@microsoft-github-policy-service agree company="Microsoft"