+@subsubheading Installing ca-certificates
+
+In order to have @code{git-cl} properly update issues on the SourceForge
+Allura issue tracker, you must have the package @code{ca-certificates}
+installed. You can check to see if the package is installed with
+
+@example
+apt --installed list | grep ca-certificates
+@end example
+
+If @code{ca-certificates} is installed, you will get a result that shows
+the version that is installed. If it is not installed, there will be
+no version displayed.
+
+Install @code{ca-certificates} with the following:
+
+@example
+sudo apt-get install ca-certificates
+@end example
+
+