templates/about: grammar fixes

Co-Authored-By: decathorpe <[email protected]>

Author: QuietMisdreavus

templates/about.hbs

@@ -117,7 +117,7 @@ no-default-features = true
 default-target = "x86_64-unknown-linux-gnu"
 rustc-args = [ "--example-rustc-arg" ]
 rustdoc-args = [ "--example-rustdoc-arg" ]
-# the dependencies key is not being used for builds yet
+# the dependencies key is currently unused, but is being saved for future support
 dependencies = [ "example-system-dependency" ]</pre></code>
 
   <h4>Version</h4>