Typo in `avdnettest.exe` more information URL

After downloading the STUN/TURN test tool I clicked the link provided for more information and was surprised to get a certificate warning
```
AVD Network Test Version 1.2303.10002.e62c947
Checking DNS service ... OK
Checking TURN support ... OK
Checking ACS server 20.202.1.199:3478 ... OK
Checking ACS server 20.202.1.196:3478 ... OK

Your have access to TURN servers and your NAT type appears to be 'cone shaped'.
Shortpath for public networks is very likely to work on this host.

See https://go.micosoft.com/fwlink/?linkid=2204021 for more information.
Press any key to continue ...
```

The 'r' is missing from microsoft which sends users to a different domain

Reference:
Test EXE URL: https://raw.githubusercontent.com/Azure/RDS-Templates/master/AVD-TestShortpath/avdnettest.exe