[TASK] Update description in ext_emconf.php
[TASK] Set version to 1.0.0
[TASK] Delete unnecessary file ext_tables.sql
[TASK] Create Readme with basic information
[DOC] Add missing screenshots
[DOC] Fix path to screenshots in Readme
[DOC] Fix wrong linebreaks
[DOC] Fix wrong indentation for the figures in Readme
[DOC] Remove empty sections from Readme