Tobias outlined a rare situation where a site admin may not have an

admin account, and will therefore need to do things in .htconfig.php

So, restore the .htconfig.php method as "If you prefer..."

impressum/README

@@ -15,4 +15,17 @@ Configuration:
   Simply fill in the fields in the impressium settings page in the plugins area
   of your admin panel.
  
+If you for any reason prefer to use a configuration file instead, you can set the 
+following variables in the .htconfig file
 
+  * $a->config['impressum']['owner']           this is the Name of the Operator
+  * $a->config['impressum']['ownerprofile']    this is an optional Friendica account
+                                               where the above owner name will link to
+  * $a->config['impressum']['email']           a contact email address (optional)
+                                               will be displayed slightly obfuscated
+                                               as name(at)example(dot)com
+
+  * $a->config['impressum']['postal']          should contain a postal address where
+                                               you can be reached at (optional)
+  * $a->config['impressum']['notes']           additional informations that should
+                                               be displayed in the Impressum block

impressum/README~

@@ -0,0 +1,18 @@
+Impressum Plugin for Friendica
+
+Author: Tobias Diekershoff
+        tobias.diekershoff@gmx.net
+
+License: 3-clause BSD license (same as Friendica)
+
+About
+  This plugin adds an Impressum block to the /friendica page with informations
+  about the page operator/owner and how to contact you in case of any questions.
+
+  In the notes and postal fields you can use HTML tags for formatting.
+
+Configuration:
+  Simply fill in the fields in the impressium settings page in the plugins area
+  of your admin panel.
+ 
+