Fix regexp of google calendar description.
Fix regexp of google calendar description.

Change regexp as the description string from google calendar events is
without line breaks.

ElixirUK/TeSS_scrapers,ElixirUK/TeSS_scrapers,ElixirUK/newtessscraper,ElixirUK/TeSS_scrapers,ElixirUK/newtessscraper,ElixirUK/newtessscraper