Auto generate docs

Author: Davidyz

doc/VectorCode-cli.txt

@@ -442,6 +442,11 @@ you can override this by the `-f` flag. It also doesn’t assume `--recursive`,
 so if you want to add a whole directory to this file, you can use `dir/**`,
 which matches all content of `dir/` recursively.
 
+
+  Note that the `include` spec only kicks in when you don’t supply file paths
+  when calling `vectorcode vectorise`. If you want a rule to be effective
+  _whenever you vectorise some files_, you should use the `exclude` specs
+  explained below.
 Similarly, you can also create a `project_root/.vectorcode/vectorcode.exclude`
 file to denote any files that you want to exclude. This is useful when you have
 some files that should be tracked by git, but are not necessary to be indexed