Feat: support new fields for meeting mode, proposed start date and duration.

As per title

README.md

@@ -34,7 +34,7 @@ flask populate_dev
 flask run
 ```
 
-Then browse to <http://localhost:5000>.
+Then browse to URL <http://localhost:5000>.
 
 ## Running the tests
 
@@ -52,4 +52,4 @@ python3 -m venv venv
 . venv/bin/activate
 pip install -r requirements.txt
 pytest
-```
\ No newline at end of file
+```