linked chapters

README.md

@@ -23,7 +23,7 @@ As an alternative to the SSH menu there is also the RTL WebUI available:
 
 ![RTL-preview](pictures/mainmenu-services.png)
 
-See more details in the Feature Documentation chapter.
+See more details in the [Feature Documentation](#feature-documentation) chapter.
 
 ## Time Estimate to Setup a RaspiBlitz
 
@@ -295,7 +295,7 @@ Have fun and riding the lightning :D
 
 ### Feature Documentation
 
-These are the features available thru the RaspiBlitz SSH main menu and services. They have the goal to offer some basic/fallback functionality & configurations to you. More complex or user-friendly tasks are best to be done with wallets, apps and scripts you connect to your Lightning Node via [APIs]() - because you have a full Bitcoin- and Lightning-Node on the RaspiBlitz.
+These are the features available thru the RaspiBlitz SSH main menu and services. They have the goal to offer some basic/fallback functionality & configurations to you. More complex or user-friendly tasks are best to be done with wallets, apps and scripts you connect to your Lightning Node via [APIs](#interface--apis) - because you have a full Bitcoin- and Lightning-Node on the RaspiBlitz.
 
 ![MainMenu-A](pictures/mainmenu1.png)