docs: add review section for PR

docs/pull-request.md

@@ -8,6 +8,18 @@ Pull request should merge the working branch to `main`.
 
 ![Github Pull Request](../static/screenshots/github-pr.png)
 
+## Reviews
+
+1. Clone the repo `git clone https://github.com/aclu-national/email-builder.git`
+2. Move into the directory with `cd email-builder`.
+3. Change the branch for the PR.
+4. Install all packages with `npm install`.
+5. Build the templates with `npm run build`.
+6. Go into the `dist/templates/base` for a built templates to test
+7. Head over to [**Sailthru**](https://my.sailthru.com/#rev/today) and changed to the `ACLU-Dev` environment.
+8. In the campaigns section, find the campaign `24XXXX NAT GradeAD Template Test`.
+9. If everything looks good, you can finally approve the PR changes.
+
 ## Merging
 
 We will be using `squash` to merge PRs. This compresses all commits pushed to that PR into a singular commit in the git history. This is useful when making smaller commits that all fix the same issue.