Update documentation.

Converted from getsops/sops@6cfb8ed

Signed-off-by: Felix Fontein <felix@fontein.de>

Author: felixfontein

content/en/docs/_index.md

@@ -1621,7 +1621,8 @@ regular expression.
 
 Conversely, you can opt in to only left certain keys without encrypting by using the
 `--unencrypted-comment-regex` option, which will leave the values and comments
-unencrypted when they have a preeceding comment that matches the supplied regular expression.
+unencrypted when they have a preeceding comment, or a trailing comment on the same line,
+that matches the supplied regular expression.
 
 You can also specify these options in the `.sops.yaml` config file.