CLOUDP-278403: Spectral README update for linting/OAS changes (#257)

Author: lovisaberggren

.github/pull_request_template.md

@@ -23,6 +23,9 @@ We're here to help! This is simply a reminder of what we are going to look for b
 - [ ] I have signed the [MongoDB CLA](https://www.mongodb.com/legal/contributor-agreement)
 - [ ] I have added tests that prove my fix is effective or that my feature works
 
+### Changes to Spectral
+- [ ] I have read the [README](../tools/spectral/README.md) file for Spectral Updates
+
 ## Further comments
 
 <!--

tools/spectral/.spectral.yaml

@@ -174,7 +174,7 @@ rules:
         functionOptions:
           match: "^(mms)$"
         message: "'additionalServices' must be 'mms' as no other services are supported."
-        
+
    no-slash-before-custom-method:
     description: "Custom methods (e.g., ':applyItem') should not be preceded by a '/'."
     message: "The path '{{path}}' contains a '/' before a custom method. Custom methods should not start with a '/'."

tools/spectral/README.md

@@ -1,11 +1,11 @@
 # Spectral updates
 
-If adding new rules or updating .spectral.yaml overall, the validations will instantly get updated across mongodb/openapi repository.
-
-To propagate the changes in MMS, engineers must open a PR and update the pinned commit sha in mms.
+If adding new rules or updating `.spectral.yaml` overall, the validations will instantly get updated across the `mongodb/openapi` repository.
 
 Please perform the following steps:
-1. [ ] Open a PR with the spectral changes and validate that the Spectral lint checks work.
-2. [ ] Review and merge the PR.
-3. [ ] Open a PR in mms, updating the commit sha of the spectral file imported.
-4. [ ] Validate all tests pass.
+
+1. Open a `mongodb/openapi` PR with the changes to `tools/spectral/.spectral.yaml`
+2. Validate that the new Spectral lint checks pass
+3. Review and merge the PR
+
+**Note:** For MongoDB engineers, please review http://go/openapi-spectral-updates.