updateWvdMgmtUxApiUrl.ps1 execution error

I am getting below error while running the script from my local computer , am I missing something

PS D:\script> .\updateWvdMgmtUxApiUrl.ps1 -AppName "gdgmyapp" -SubscriptionID "5837cd48-4731-4e31-b0a8-56821a09a7e2"
At D:\script\updateWvdMgmtUxApiUrl.ps1:144 char:19
+ Sign up
+ ~
The ampersand (&) character is not allowed. The & operator is reserved for future use; wrap an ampersand in
double quotation marks ("&") to pass it as part of a string.
At D:\script\updateWvdMgmtUxApiUrl.ps1:171 char:190
+ ... ata-ga-click="(Logged out) Header, go to Features">Features →Customer stories →Security →Explore GitHub →Learn & con ...
+ ~
The ampersand (&) character is not allowed. The & operator is reserved for future use; wrap an ampersand in
double quotation marks ("&") to pass it as part of a string.
Not all parse errors were reported. Correct the reported errors and try again.
+ CategoryInfo : ParserError: (:) [], ParseException
+ FullyQualifiedErrorId : AmpersandNotAllowed

Open updateWvdMgmtUxApiUrl.ps1 and inspect the parsing failures around lines 144, 171, 184, 185, 205, and 208. Start by running the supplied command and checking whether the script parses successfully; done means it runs without the reported PowerShell parser errors.

Written by the indexing model from the issue text.