add more links in README

README.txt

@@ -19,7 +19,8 @@ To build:
 
 Documentation:
 	https://geti2p.net/how
-	API: run 'ant javadoc' then start at build/javadoc/index.html
+	API: http://docs.i2p-projekt.de/javadoc/
+	     or run 'ant javadoc' then start at build/javadoc/index.html
 
 Latest release:
 	https://geti2p.net/download
@@ -34,6 +35,15 @@ Need help?
 	IRC irc.freenode.net #i2p
 	http://forum.i2p/
 
+Bug reports:
+	https://trac.i2p2.de/report/1
+
+Contact information, security issues, press inquiries:
+	https://geti2p.net/en/contact
+
+Twitter:
+	@i2p, @geti2p
+
 Licenses:
 	See LICENSE.txt