Wiki Link Updates (#4699)

##### Summary
<!--- Describe the change below, including rationale and design decisions -->
Replaces links to wiki pages with links to the respective markdown files in the repo. The files with the updates in this PR are not MD files. 

Fixes #4650 
<!--- HINT: Include "Fixes #nnn" if you are fixing an existing issue -->

##### Component Name
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##### Additional Information
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1 files changed, 1 insertions, 1 deletions

diff --git a/collectors/tc.plugin/tc-qos-helper.sh.in b/collectors/tc.plugin/tc-qos-helper.sh.in
index 6f6b0a591a..d9861b5b70 100755
--- a/collectors/tc.plugin/tc-qos-helper.sh.in
+++ b/collectors/tc.plugin/tc-qos-helper.sh.in
@@ -100,7 +100,7 @@ if [ ! -d "${fireqos_run_dir}" ]
             warning "Although FireQoS is installed on this system as '${fireqos}', I cannot find/read its installation configuration at '${fireqos_exec_dir}/install.config'."
         fi
     else
-        warning "FireQoS is not installed on this system. Use FireQoS to apply traffic QoS and expose the class names to netdata. Check https://github.com/netdata/netdata/wiki/You-should-install-QoS-on-all-your-servers"
+        warning "FireQoS is not installed on this system. Use FireQoS to apply traffic QoS and expose the class names to netdata. Check https://github.com/netdata/netdata/tree/master/collectors/tc.plugin#tcplugin
     fi
 fi