Update store description

- Consistently use "TV shows"
- Add no account required, open source, small business
- Drop extensions, subscription, no watching note
- Add link to help and repo (to check it out before downloading it)

market_description.txt

@@ -2,19 +2,21 @@ SeriesGuide: show manager
 
 Keep track of your favorite TV shows and movies.
 
-With SeriesGuide you can find shows and movies to watch, keep track of your watched episodes and movies, get notifications about upcoming episodes and back it up and sync it across devices.
+With SeriesGuide you can discover TV shows and movies, keep track of your watched episodes and movies, and get notified about upcoming episodes.
 
-<b>Discover.</b> Find shows with new episodes, which are popular or are similar to those you are watching. Explore movies currently in cinemas, released digitally or on disc.
+<b>Discover.</b> Find TV shows with new episodes, which are popular or similar to those you are watching. Explore movies currently in cinemas, released digitally or on disc.
 
-<b>Backup and sync.</b> Sign into SeriesGuide Cloud to backup and sync your shows, lists and movies.
+<b>Backup and sync.</b> Sign into SeriesGuide Cloud to backup and sync your TV shows, lists and movies.
 
 <b>Integrates with Trakt.</b> Connect your Trakt account to access your watchlist and collection, check in, rate and comment. Sync watched episodes and movies between apps and media centers supported by Trakt.
 
-<b>Extensions.</b> Add an extension button provided by a third-party app or build your own.
+<b>No account required.</b> You can, but do not have to create an account to use the app. You can back up and restore your library using JSON files only.
 
-<b>Get the subscription to unlock all features and support SeriesGuide!</b> You will get more list widget options, notifications for new episodes and more. You also support continued fixes and new features.
+<b>Open source and small business.</b> SeriesGuide is supported by its subscribers, not by advertisers or investors.
 
-NOTE: You can not watch episodes or movies. For episodes only the release date on the original network is listed.
+For support, questions or more information visit https://www.seriesgui.de/help
+
+To check out the source code, visit https://github.com/UweTrottmann/SeriesGuide
 
 SeriesGuide X Unlock Key