docs: Fix incomplete sentence in usage docs

assets/chezmoi.io/docs/user-guide/frequently-asked-questions/usage.md

@@ -5,9 +5,11 @@
 There are five popular approaches:
 
 1. Use `chezmoi edit $FILE`. This will open the source file for `$FILE` in your
-   editor, including . For extra ease, use `chezmoi edit --apply $FILE` to apply
-   the changes when you quit your editor, and `chezmoi edit --watch $FILE` to
-   apply the changes whenever you save the file.
+   editor, including opening the template if the file is templated and
+   transparently decrypting and re-encrypting it if it is encrypted. For extra
+   ease, use `chezmoi edit --apply $FILE` to apply the changes when you quit
+   your editor, and `chezmoi edit --watch $FILE` to apply the changes whenever
+   you save the file.
 
 2. Use `chezmoi cd` and edit the files in the source directory directly. Run
    `chezmoi diff` to see what changes would be made, and `chezmoi apply` to make