Rephrase several entries in the 1.9 changelog

Author: mpost

README.md

@@ -31,14 +31,14 @@ We are developing this application in public to bring you a tool that _you_ want
 
 ### [v1.9.0](https://github.com/plusonelabs/calendar-widget/issues?q=is%3Aissue+milestone%3A1.9) "Showing past events"
 
-* New group of preferences created: "Event filters". It holds already existed "Date range" preference and new options, allowing to show past events.
-* Added "Events that ended recently" option. It allows to show events, which ended several hours ago, today or yesterday. [#122](https://github.com/plusonelabs/calendar-widget/issues/122)
-* Added "Show all past events having default color" option. Turning this option on will show you all past events, which have 'Default color'. This option may be used to treat calendar events as Tasks and mark their completion by changing event's color. [#138](https://github.com/plusonelabs/calendar-widget/issues/138)
-* Added "Past events background color" option.
-* Added "Hide based on keywords in a title" option, which acts on all events. You may type several keywords, separated by spaces or commas.
-* Added "Today" option to a "Date range", so you can see current and future events for today only [#156](https://github.com/plusonelabs/calendar-widget/issues/156) (The same "Today" option exists for past events also)
-* "Refresh" icon/button added to the widget's Header allowing instantly refresh list of events in the widget [#120](https://github.com/plusonelabs/calendar-widget/issues/120)
-* Added "Show days without events" option.
+* New preferences to filter the events shown by the widget
+  * New "Show events that ended recently" option allows to show events, which ended several hours ago, today or yesterday. [#122](https://github.com/plusonelabs/calendar-widget/issues/122)
+  * New "Show all past events having default color" optionshows all past events, which have 'Default color'. This option may be used to treat calendar events as Tasks and mark their completion by changing event's color. [#138](https://github.com/plusonelabs/calendar-widget/issues/138)
+  * New "Hide based on keywords in a title" option, which acts on all events. Multiple keywords may be seperated by spaces or commas.
+* Add "Past events background color" option.
+* Add "Today" option to "Date range", so you can see current and future events for today only (The same "Today" option exists for past events also) [#156](https://github.com/plusonelabs/calendar-widget/issues/156) 
+* Add "Refresh" button to widget header to refresh the list of events [#120](https://github.com/plusonelabs/calendar-widget/issues/120)
+* Add "Show days without events" option
 
 ### [v1.8.6](https://github.com/plusonelabs/calendar-widget/issues?q=milestone%3A1.8.6+is%3Aclosed)