Add FAQ link to issue template.

ISSUE_TEMPLATE.md

@@ -1,4 +1,4 @@
-**Please fill in these details so that we can help you!**
+**Check the [posh-git FAQ](https://github.com/dahlbyk/posh-git/wiki/FAQ) first and if your question is not answered, PLEASE fill in these details so that we can help you!**
 
 ### System Details
 
@@ -8,7 +8,7 @@
 - Operating system name and version:
 
 ```powershell
-# To retrieve the system details, evaluate the following commmands and paste the resulting output here
+# To retrieve the above system details, paste the following line into PowerShell, press Enter and then copy the resulting output here
 "`nposh-git version: $((Get-Module posh-git).Version), PSVersion: $($PSVersionTable.PSVersion), $(git --version), OS: $([System.Environment]::OSVersion)"
 ```