chore(lint): fix replacable helper typo (#116)

* Fix typo in replaceable helper

* chore(docs): add docstrings to `codex/rename-replacable-to-replaceable-and-update-references` (#117)

Docstrings generation was requested by @ivuorinen.

* https://github.com/ivuorinen/dotfiles/pull/116#issuecomment-2938946257

The following files were modified:

* `scripts/install-cheat-purebashbible.sh`

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

---------

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

config/exports

@@ -213,7 +213,7 @@ get_sha256sum()
 # $2 - filename (string)
 #
 # Returns 1 when replaceable, 0 when not replaceable.
-replacable()
+replaceable()
 {
   FILE1="$1"
   FILE2="$2"