Update main.yml

Decommissioning this branch. Workflow will now be highly modular with a main branch for each page. This is the best workflow I found for the archive and I think it would be easiest to incorporate for all pages now and in the future. 

So basically, the main branch will not deploy to the site, it will only look like it does because of 'dry-run: true'

.github/workflows/main.yml

@@ -15,3 +15,4 @@ jobs:
         username: potatoroot
         password: ${{ secrets.password }}
         state-name: syncStates/.ftp-Main-sync-state.json 
+        dry-run: true