guideline in doc/README.

diff --git a/doc/README.txt b/doc/README.txt
index fbbc2442442f1a5d2f05fa693994f3bec8a124a0..d27643c3e652a89ab80ccf054fcfed92c886a0c9 100644 (file)
--- a/doc/README.txt
+++ b/doc/README.txt
@@ -1,3 +1,10 @@
+To be moved to an appropriate section of "how to write documentation" or
+"how to contribute to the documentation":
+
+1. When writing documentation, please use gender-neutral wording when
+   referring to people, such as singular “they”, “their”, “them”, and
+   so forth. -> https://en.wikipedia.org/wiki/Singular_they
+
 * What's left to do
 
 - Which Texlive modules are needed? Decrease the size.