Bug fix: fix typo in files.yo

[Max Coplan <ssjvegerot@xxxxxxxxxx>]

changeset:   140da8a6e9217a13390d55ab3b9bae81780d98e3  (@)
parent:      bc7511bdd887cfda7eb45e8009de079d35c4d7f1
user:        Max 👨🏽‍💻 Coplan <mchcopl@xxxxxxxxx>
date:        Fri, 30 Dec 2022 15:24:19 -0800

    Fix typo in `files.yo`

    Summary: `an path` -> `a path`

    Test Plan: N/A

diff --git a/Doc/Zsh/files.yo b/Doc/Zsh/files.yo
--- a/Doc/Zsh/files.yo
+++ b/Doc/Zsh/files.yo
@@ -14,7 +14,7 @@
 Commands are first read from tt(zshenv()); this cannot be overridden.
 Subsequent behaviour is modified by the tt(RCS) and
 tt(GLOBAL_RCS) options; the former affects all startup files, while the
-second only affects global startup files (those shown here with an
+second only affects global startup files (those shown here with a
 path starting with a tt(/)).  If one of the options
 is unset at any point, any subsequent startup file+LPAR()s+RPAR()
 of the corresponding