added style for html documentation

--HG--
branch : trunk
diff --git a/.hgignore b/.hgignore
index 55d124f..0aa46ee 100644
--- a/.hgignore
+++ b/.hgignore
@@ -1,7 +1,7 @@
 ^instance$
 ^instance/
 ^jinja2/.*\.so$
-^docs/_.*
+^docs/_build
 ^(build|dist|Jinja2\.egg-info)/
 \.py[co]$
 \.DS_Store$