Add extra customization options to add_header_above
diff --git a/.Rbuildignore b/.Rbuildignore
index a278550..630c7af 100644
--- a/.Rbuildignore
+++ b/.Rbuildignore
@@ -2,3 +2,4 @@
 ^\.Rproj\.user$
 ^tests$
 ^docs$
+^.github$