docs: Link LIBTMUX_TMUX_FORMAT_SEPARATOR

tony · tony · commit 8ebc0e648d2e · 2022-03-19T08:54:35.000-05:00
diff --git a/docs/api.md b/docs/api.md
@@ -192,6 +192,8 @@ versions.
 
 ## Environmental variables
 
+(LIBTMUX_TMUX_FORMAT_SEPARATOR)=
+
 ### tmux format separator
 
 ```{versionadded} 0.11.0b0
