chore: fix spelling errors across the project (#10459)

Co-authored-by: Josh Soref <jsoref@users.noreply.github.com>

plugins/sprunge/README.md

@@ -28,5 +28,5 @@ http://sprunge.us/XxjnKz
 - Sprunge accepts piped data, stdin redirection, text strings as input or filenames.
   Only one of these can be used at a time.
 - Argument precedence goes as follows: stdin > piped input > text strings.
-- If a filename is mispelled or doesn't have the necessary path description, it will NOT
+- If a filename is misspelled or doesn't have the necessary path description, it will NOT
   generate an error, but instead treat it as a text string.