Docs: fix broken link

Author: strager

docs/config.adoc

@@ -155,7 +155,7 @@ If *global-groups* is *false* or an empty array, then no global variables are de
 
 If *global-groups* is a non-empty array, then global variables are defined per the given group names.
 Each group name is a string.
-For the list of group names, see the <<Global groups>> section.
+For the list of group names, see the <<Global Groups>> section.
 --
 
 [#globals]

docs/man/quick-lint-js.config.5

@@ -255,7 +255,7 @@ If \fBglobal\-groups\fP is \fBfalse\fP or an empty array, then no global variabl
 .sp
 If \fBglobal\-groups\fP is a non\-empty array, then global variables are defined per the given group names.
 Each group name is a string.
-For the list of group names, see the [Global groups] section.
+For the list of group names, see the [global\-groups] section.
 .RE
 .SH "GLOBALS"
 .sp