Clarify which requirement are mandatory (PowerShell#10734)

Author: TravisEz13

.github/ISSUE_TEMPLATE/Distribution_Request.md

@@ -12,10 +12,14 @@ assignees: ''
 - Name of the Distribution: 
 - Version of the Distribution:
 - Processor Architecture (One per request): 
-- [ ] The version of the Distribution is supported for at least one year.
-- [ ] The version of the Distribution is not an [interim release](https://ubuntu.com/about/release-cycle) or equivalent.
-- [ ] The version and architecture of the Distribution is [supported by .NET Core](https://github.com/dotnet/core/blob/master/release-notes/3.0/3.0-supported-os.md#linux).
-- [ ] An issues has been filed to create a Docker image in https://github.com/powershell/powershell-docker
+- [ ] **Required** - An issues has been filed to create a Docker image in https://github.com/powershell/powershell-docker
+- The following is a requirement for supporting a distribution **without exception.**
+  - [ ] The version and architecture of the Distribution is [supported by .NET Core](https://github.com/dotnet/core/blob/master/release-notes/3.0/3.0-supported-os.md#linux).
+- The following are requirements for supporting a distribution.
+  Please write a justification for any exception where these criteria are not met and 
+  the PowerShell comittee will review the request.
+  - [ ] The version of the Distribution is supported for at least one year.
+  - [ ] The version of the Distribution is not an [interim release](https://ubuntu.com/about/release-cycle) or equivalent.
 
 ## Progress - For PowerShell Team **ONLY**