Refine notes on Get-Help command usage

Updated notes on using Get-Help with wildcard characters and About help files.

Author: Rob-Barefoot

learn-pr/wwl-azure/understand-command-syntax-windows-powershell/includes/5-display-about-files-content-powershell.md

@@ -19,9 +19,9 @@ Get-Help about_CommonParameters -ShowWindow
 Get-Help about_CommonParameters -Online
 ```
 > [!NOTE]
-> For the -Online version to open, it must have the URI/URL included in the information in the local help files. If the URI/URL is not included in the local version, you may receive an error.
+> For the -Online version to open, it must have the URI/URL included in the information in the local help files. If the URI/URL isn't included in the local version, you may receive an error.
 
-When you use wildcard characters with the **Get-Help** command, **About** help files will appear in a list when their titles contain a match for your wildcard pattern. Typically, **About** help files will appear last, after any commands whose names also matched your wildcard pattern. You can also use the *‑Category* parameter to specify a search for **About** files.
+When you use wildcard characters with the **Get-Help** command, **About** help files appear in a list when their titles contain a match for your wildcard pattern. Typically, **About** help files will appear last, after any commands whose names also matched your wildcard pattern. You can also use the *‑Category* parameter to specify a search for **About** files.
 
 > [!NOTE] 
 > For much of this course, you'll need to refer to **About** files for additional documentation. You must review these files frequently to discover the steps and techniques you need to complete lab exercises.