[PATCH for Dwaipayan] MAINTAINERS: clarify responsibility for checkpatch documentation

[Lukas Bulwahn]

As discussed, Dwaipayan and Lukas take the responsibility for maintaining
the checkpatch documentation that is currently being built up.

To be sure that the checkpatch maintainers and the corresponding
documentation maintainers can keep the content synchronized, add them as
reviewers to the counterpart.

Link: https://lore.kernel.org/lkml/bcee822d1934772f47702ee257bc735c8f467088.camel@perches.com/
Signed-off-by: Lukas Bulwahn <lukas.bulwahn at gmail.com>
---
applies cleanly on next-20210226

Dwaipayan, you probably want to add this patch to your patch series for checkpatch
documentation.

Feel free to add your Signed-off-by tag just following mine. 

 MAINTAINERS | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 16ada1a4b751..6b48b79ba284 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4181,9 +4181,18 @@ X:	drivers/char/tpm/
 CHECKPATCH
 M:	Andy Whitcroft <apw at canonical.com>
 M:	Joe Perches <joe at perches.com>
+R:	Dwaipayan Ray <dwaipayanray1 at gmail.com>
+R:	Lukas Bulwahn <lukas.bulwahn at gmail.com>
 S:	Maintained
 F:	scripts/checkpatch.pl
 
+CHECKPATCH DOCUMENTATION
+M:	Dwaipayan Ray <dwaipayanray1 at gmail.com>
+M:	Lukas Bulwahn <lukas.bulwahn at gmail.com>
+R:	Joe Perches <joe at perches.com>
+S:	Maintained
+F:	Documentation/dev-tools/checkpatch.rst
+
 CHINESE DOCUMENTATION
 M:	Harry Wei <harryxiyou at gmail.com>
 M:	Alex Shi <alex.shi at linux.alibaba.com>
-- 
2.17.1