Allow .png as alternate for ASCII art.

diff --git a/doc/threads.tmpl b/doc/threads.tmpl
index 9d421f62e2be32ddd3409af47ea1e5f338794cdb..98c5c5c54e9c1c99693449934990572c00d559d0 100644 (file)
--- a/doc/threads.tmpl
+++ b/doc/threads.tmpl
@@ -61,7 +61,7 @@ FirstName LastName <email@domain.example>
 >> Identify the purpose of each in 25 words or less.
 
 >> Explain the data structure used to track priority donation.  Use ASCII
->> art to diagram a nested donation.
+>> art to diagram a nested donation.  (Alternately, submit a .png file.)
 
 ---- ALGORITHMS ----