doc/README +

diff --git a/doc/README.txt b/doc/README.txt
index 60108deeca788f1226020d26d0831d0401f1cab1..016d16c1a7dcbc582ec7fb5e4feb82347379e584 100644 (file)
--- a/doc/README.txt
+++ b/doc/README.txt
@@ -7,6 +7,7 @@ To be moved to an appropriate section of "how to write documentation" or
 
 2. Keep line length below 74 characters.
 
+3. Do not use tab characters (see chapter 2.1 texinfo manual)
 * What's left to do
 
 - Which Texlive modules are needed? Decrease the size.