doc/README.

diff --git a/doc/README.txt b/doc/README.txt
index d27643c3e652a89ab80ccf054fcfed92c886a0c9..60108deeca788f1226020d26d0831d0401f1cab1 100644 (file)
--- a/doc/README.txt
+++ b/doc/README.txt
@@ -5,6 +5,8 @@ To be moved to an appropriate section of "how to write documentation" or
    referring to people, such as singular “they”, “their”, “them”, and
    so forth. -> https://en.wikipedia.org/wiki/Singular_they
 
+2. Keep line length below 74 characters.
+
 * What's left to do
 
 - Which Texlive modules are needed? Decrease the size.