Update README.md

README.md

-[PACKAGE]: ../../raw/master/mkp/active_check_traceroute-0.0.2-20230607.mkp "active_check_traceroute-0.0.2-20230607.mkp"
+[PACKAGE]: ../../raw/2.1.x/mkp/active_check_traceroute-0.0.2-20230607.mkp "active_check_traceroute-0.0.2-20230607.mkp"
 # Extended traceroute plugin
 
 This is a extension for the original CheckMK traceroute plugin (Routing)
@@ -17,7 +17,7 @@ adds the following options:
 
 **Note: Source address and source interface uses the "shell=True" option in in the "subprocess.Popen" command. This is insecure, so be careful.**
 
-To enable this options you need to uncomment the line `# shell = True` in [~/lib/nagios/plugins/check_traceroute](https://thl-cmk.hopto.org/gitlab/checkmk/vendor-independent/active_check_traceroute/-/blob/master/lib/nagios/plugins/check_traceroute) like this.
+To enable this options you need to uncomment the line `# shell = True` in [~/lib/nagios/plugins/check_traceroute](https://thl-cmk.hopto.org/gitlab/checkmk/vendor-independent/active_check_traceroute/-/blob/2.1.x/lib/nagios/plugins/check_traceroute) like this.
 
 ```
     if (source_int is not None) or (source_addr is not None):
@@ -35,7 +35,7 @@ To enable this options you need to uncomment the line `# shell = True` in [~/lib
 
 * *state*: see original plugin
 
-* *wato*: [(see WATO options)](/../../../-/raw/master/doc/wato.png "see sample screenshot")
+* *wato*: [(see WATO options)](/../../../-/raw/2.1.x/img/wato.png "see sample screenshot")
 
 * *perfdata*: see original plugin