Fixed Invoke-ContentReplacer.ps1

[jikuja]

The script did not save content changes into README.md because of the minor issues.

Running the script with proposed changes has following output with git diff:

diff --git a/README.md b/README.md
index 5b1519b..6a561c7 100644
--- a/README.md
+++ b/README.md
@@ -16,6 +16,9 @@ The technical requirements as well as the required permissions are minimal.

 You can run the script either for your tenant root management group or any other management group.

+| :arrows_counterclockwise: | This repo is a mirror of the open source [AzGovViz project](https://github.com/JulianHayward/Azure-MG-Sub-Governance-Reporting) maintained by Julian Hayward, other Microsoft employees, and community members. It is mirrored here with his permission, and this mirror strives to stay in sync with released upstream versions. Please consider making product improvement recommendations on the upstream repo to prevent divergence. Thank you. |
+|-----------|:--------------------------|
+
 ## Mission

 "_Governance can be a complex thing_.."

Note that OpenSSF URL changes are not visible because jacobtomlinson/gha-find-replace@v3 does the replacement

[Prettytaryn23]

Unblock

[jikuja]

Unblock as remove commented code that

• does nothing
• creates duplicate OpenSSF badge?