fixed typo in workbook build message

work_helpers/sg_mbp_build.py

@@ -183,14 +183,14 @@ def get_announcement_text(dev_version, build_version, new_folder_name):
     text = [
         f"# New MBP Workbook Version {build_version}",
         "Good News Everyone,",
-        f"there is a new workbook version available: {build_version}",
+        f"there is a new MBP workbook version available: {build_version}",
         ( 
             f"As indicated by the letter '{dev_version}' at the end,"
             " this version is intended for Freiburg only."
         ),
         change_msg,
         "\n".join(changes),
-        "You can find this version  at our Freiburg Shared Drive:",
+        "You can find this version at our Freiburg Shared Drive:",
         (
             "Google Drive / Shared drives / Freiburg / Workbooks / MBP Workbooks /"
             f" {latest} /"