Makefile: use mkdocs --quiet

I want to run this from cron, and I want to avoid getting
and email every time.

1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index e0f4d6b..b2b2f57 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 all:
-	LC_ALL=C.UTF-8 LANG=C.UTF-8 mkdocs build --clean
+	LC_ALL=C.UTF-8 LANG=C.UTF-8 mkdocs build --clean --quiet
 	cp -af htaccess site/.htaccess
 
 .PHONY: clean