docs(rcstack-help): fix instructions for getting rcstack at stable

scripts/rcstack/rcstack

@@ -324,7 +324,7 b' rcstack_self_update_usage() {'
 
     # :command.usage_examples
     printf "%s\n" "Examples:"
-    printf "  - ./rccstack self-update simply to update it to a new version\n  \n  # to fetch dev branch and install it\n  - ./rccstack self-update --cli-revision=dev --docker-revision=dev\n  \n  # In case rcstack breaks, you can re-download the stack script using curl\n  curl -L -s -o rcstack https://dls.rhodecode.com/get/master && chmod +x rcstack\n"
+    printf "  - ./rccstack self-update simply to update it to a new version\n  \n  # to fetch dev branch and install it\n  - ./rccstack self-update --cli-revision=dev --docker-revision=dev\n  \n  # In case rcstack breaks, you can re-download the stack script using curl\n  curl -L -s -o rcstack https://dls.rhodecode.com/get-rcstack && chmod +x\n  rcstack\n"
     echo
 
   fi