chore: adjust docs CI triggers (#329)

- only build docs for PRs and pushes to main - only deploys docs from main branch

Author: 2bndy5

.github/workflows/mkdocs-deploy.yml

@@ -2,6 +2,9 @@ name: MkDocs Deploy
 
 on:
  push:
+ branches: [main]
+ pull_request:
+ branches: [main]
  workflow_dispatch:
 
 jobs: