config.txt: move interactive.* to a separate file

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

Documentation/config.txt

@@ -361,22 +361,7 @@ include::config/init.txt[]
 
 include::config/instaweb.txt[]
 
-interactive.singleKey::
-	In interactive commands, allow the user to provide one-letter
-	input with a single key (i.e., without hitting enter).
-	Currently this is used by the `--patch` mode of
-	linkgit:git-add[1], linkgit:git-checkout[1], linkgit:git-commit[1],
-	linkgit:git-reset[1], and linkgit:git-stash[1]. Note that this
-	setting is silently ignored if portable keystroke input
-	is not available; requires the Perl module Term::ReadKey.
-
-interactive.diffFilter::
-	When an interactive command (such as `git add --patch`) shows
-	a colorized diff, git will pipe the diff through the shell
-	command defined by this configuration variable. The command may
-	mark up the diff further for human consumption, provided that it
-	retains a one-to-one correspondence with the lines in the
-	original diff. Defaults to disabled (no filtering).
+include::config/interactive.txt[]
 
 log.abbrevCommit::
 	If true, makes linkgit:git-log[1], linkgit:git-show[1], and

Documentation/config/interactive.txt

@@ -0,0 +1,16 @@
+interactive.singleKey::
+	In interactive commands, allow the user to provide one-letter
+	input with a single key (i.e., without hitting enter).
+	Currently this is used by the `--patch` mode of
+	linkgit:git-add[1], linkgit:git-checkout[1], linkgit:git-commit[1],
+	linkgit:git-reset[1], and linkgit:git-stash[1]. Note that this
+	setting is silently ignored if portable keystroke input
+	is not available; requires the Perl module Term::ReadKey.
+
+interactive.diffFilter::
+	When an interactive command (such as `git add --patch`) shows
+	a colorized diff, git will pipe the diff through the shell
+	command defined by this configuration variable. The command may
+	mark up the diff further for human consumption, provided that it
+	retains a one-to-one correspondence with the lines in the
+	original diff. Defaults to disabled (no filtering).