Updated Shell aliases (markdown)

Shell-aliases.md

@@ -31,4 +31,16 @@ iex "$(thefuck --alias)"
 
 ```tcsh
 alias fuck 'set fucked_cmd=`history -h 2 | head -n 1` && eval `thefuck ${fucked_cmd}`'
-```
+```
+
+# xonsh
+
+Install the xonsh extension:
+```
+pip install xontrib-thefuck
+```
+
+And then load it (you can add this to xonshrc for it to be loaded in every xonsh session):
+```
+xontrib load thefuck
+```