1 files changed, 3 insertions, 0 deletions

diff --git a/README b/README
index 43a8deff9..43ecaeb6a 100644
--- a/README
+++ b/README
@@ -435,6 +435,9 @@ which allows only the following characters to be backslash-escaped:
 
     \`*_{}[]()>#+-.!
 
+A backslash-escaped space is parsed as a nonbreaking space.  It will
+appear in TeX output as '~' and in HTML and XML as '\ ' or '\ '.
+
 Subscripts and superscripts
 ---------------------------