Repo infra: Add PR template for Nomad (#1189)

Add PR template for Nomad content. 
Nomad is scheduled to move Nov 18. 


Jira: [CE-1066]


[CE-1066]:
https://hashicorp.atlassian.net/browse/CE-1066?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

Author: aimeeu

.github/PULL_REQUEST_TEMPLATE/nomad_pull_request_template.md

@@ -0,0 +1,79 @@
+<!--
+**Merge branch**
+
+Make sure you create your PR against the correct **base** branch. For instructions, refer to
+GitHub's **Change the branch range and destination repository guide** (https://docs.github.com/en/pull-requests/collaborating-with-pull-requests/proposing-changes-to-your-work-with-pull-requests/creating-a-pull-request).
+
+If your content is an update to:
+
+- Currently published content
+
+  Choose **base: main** when you are updating published documentation, and you
+  want your changes published when the PR is merged. We publish Nomad content
+  from the `main` branch.
+- Upcoming Nomad release
+
+  Choose the branch for the Nomad release that your content is for. Nomad
+  release branches use the `nomad/<exact-release-number>` format. If you are not
+  able to find the upcoming Nomad release branch that you are looking for,
+  contact the tech writer that works with the Nomad team.
+
+**Backports**
+
+This repo stores previous version docs in folders instead of branches. There are
+no backport labels.  If you backported your code PR to previous branches, update
+the docs content in the corresponding folders. For example, if the current
+release is 1.10.x and you backported your code to 1.9.x and 1.8.x, update the docs content
+in the v1.10.x, v1.9.x, and v1.8.x folders.
+-->
+
+## Description
+
+<!-- Please describe why you're making this change and point out any important details the reviewers
+should be aware of. 
+
+Include the target release as well as prior versions if applicable.
+-->
+
+## Links
+<!--
+Please include links to GitHub issues, documentation, or similar which is relevant to this PR. If
+this is a bug fix, please ensure related issues are linked so they will close when this PR is
+merged.
+
+Jira: [<jira-ticket-number>]  // for example, Jira: [CE-1001] GH-Jira integration generates the link and updates the Jira ticket.
+GitHub Issue: <issue-link>
+Deploy previews:
+
+The bot does publish a root-level link to the deploy preview, 
+but it's nice to include a direct link to your content so the reviewers don't have to navigate to your pages.
+-->
+
+## Contributor checklists
+
+Review urgency:
+
+- [ ] ASAP: Bug fixes, broken content, imminent releases
+- [ ] 3 days: Small changes, easy reviews
+- [ ] 1 week: Default expectation
+- [ ] Best effort: No urgency
+
+Pull request:
+
+- [ ] Verify that the PR is set to merge into the correct base branch
+- [ ] Verify that all status checks passed
+- [ ] Verify that the preview environment deployed successfully
+- [ ] Add additional reviewers if they are not part of assigned groups
+
+Content:
+
+- [ ] I added redirects for any moved or removed pages
+- [ ] I followed the [Education style guide](https://github.com/hashicorp/web-unified-docs/tree/main/docs/style-guide)
+- [ ] I looked at the local or Vercel build to make sure the content rendered correctly
+
+## Reviewer checklist
+
+- [ ] This PR is set to merge into the correct base branch.
+- [ ] The content does not contain technical inaccuracies.
+- [ ] The content follows the Education content and style guides.
+- [ ] I have verified and tested changes to instructions for end users.

.github/pull_request_template.md

@@ -1,4 +1,5 @@
 Please go to the `Preview` tab and select the appropriate template:
 
 * [HCP services](?expand=1&template=hcp_pull_request_template.md)
+* [Nomad](?expand=1&labels=Nomad&title=Nomad+Docs&template=nomad_pull_request_template.md)
 * [Terraform Enterprise](?expand=1&template=ptfe_release_pull_request_template.md)