config.txt: move merge-config.txt to config/

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/config.txt

@@ -371,7 +371,7 @@ include::config/mailmap.txt[]
 
 include::config/man.txt[]
 
-include::merge-config.txt[]
+include::config/merge.txt[]
 
 mergetool.<tool>.path::
 	Override the path for the given tool.  This is useful in case

Documentation/config/merge.txt

@@ -30,7 +30,7 @@ merge.verifySignatures::
 	If true, this is equivalent to the --verify-signatures command
 	line option. See linkgit:git-merge[1] for details.
 
-include::config/fmt-merge-msg.txt[]
+include::fmt-merge-msg.txt[]
 
 merge.renameLimit::
 	The number of files to consider when performing rename detection
@@ -63,7 +63,7 @@ merge.tool::
 	Any other value is treated as a custom merge tool and requires
 	that a corresponding mergetool.<tool>.cmd variable is defined.
 
-include::mergetools-merge.txt[]
+include::../mergetools-merge.txt[]
 
 merge.verbosity::
 	Controls the amount of output shown by the recursive merge

Documentation/git-merge.txt

@@ -342,7 +342,7 @@ include::merge-strategies.txt[]
 
 CONFIGURATION
 -------------
-include::merge-config.txt[]
+include::config/merge.txt[]
 
 branch.<name>.mergeOptions::
 	Sets default options for merging into branch <name>. The syntax and