ADD README infomration about IRC, Github mirror and issue tracker

README.md

@@ -2,6 +2,9 @@
 
 **CLI-only text pastebin service.**
 
+[Issue tracker](https://git.uphillsecurity.com/cf7/linedump/issues) | `Libera Chat #linedump`
+
+
 - Status: Beta - expect minor changes
 - Instance: [linedump.com](https://linedump.com/)
 - Inspired by:
@@ -129,6 +132,12 @@ For security concerns or reports, please contact via `hello a t uphillsecurity d
 
 ---
 
+## Notes
+
+- [Github Mirror available](https://github.com/CaffeineFueled1/linedump)
+
+---
+
 ## License
 
 **Apache License**