docs: admin-guide: edid: Clarify where to run "make"

When both the documentation and the data files lived in
Documentation/EDID, this wasn't necessary, but both have
been moved to other directories in the meantime.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>

Documentation/admin-guide/edid.rst

@@ -34,7 +34,7 @@ individual data for a specific misbehaving monitor, commented sources
 and a Makefile environment are given here.
 
 To create binary EDID and C source code files from the existing data
-material, simply type "make".
+material, simply type "make" in tools/edid/.
 
 If you want to create your own EDID file, copy the file 1024x768.S,
 replace the settings with your own data and add a new target to the