Update 01-About.md

Fixed broken links to "Icinga DB feature" and "Icinga DB daemon"

doc/01-About.md

@@ -5,10 +5,10 @@ visualizing monitoring data in the Icinga ecosystem, consisting of:
 
 * Icinga DB Web which connects to both a Redis®[\*](TRADEMARKS.md#redis) server and 
   a database to view and work with monitoring data
-* Icinga 2 with its [Icinga DB feature](https://icinga.com/docs/icinga-2/latest/14-features/#icinga-db) enabled,
+* Icinga 2 with its [Icinga DB feature](https://icinga.com/docs/icinga-2/latest/doc/14-features/#icinga-db) enabled,
   responsible for publishing monitoring configuration, check results,
   states changes and history items to the Redis® server
-* And the [Icinga DB daemon](https://icinga.com/docs/icinga-db/latest/01-About/),
+* And the [Icinga DB daemon](https://icinga.com/docs/icinga-db/latest/doc/01-About/),
   which synchronizes monitoring data between the Redis® server and the database
 
 ![Icinga DB Architecture](res/icingadb-architecture.png)