update README to reflect infrastructure changes

README.md

@@ -66,10 +66,10 @@ If you are satisfied, add it to the branch, and push it to the server:
 
 Then, [create a pull request] on Forgejo.  Press the button labeled
 `New pull request`.  On the following site, select the branch you want to merge
-(`my-new-post`) in the `pull from:` dropdown, press the green `New pull request`
+(`my-new-post`) in the `pull from:` dropdown, press the `New pull request`
-button.  The CI will now build a website with your changes.  Once that's done
+button and then finally the `Create pull request` button.  The CI will now build
-and you verified everything looks alright, you can then merge the pull request
+a website with your changes.  Once that's done and you verified everything looks
-to publish the change.
+alright, you can then merge the pull request to publish the change.
 
 [create a pull request]: https://git.hamburg.ccc.de/Cryptoparty/cryptoparty-website/pulls