Fix #30 by adding option escape to add_header_abover & group_rows
diff --git a/inst/NEWS b/inst/NEWS
index 66f09fb..f2de624 100644
--- a/inst/NEWS
+++ b/inst/NEWS
@@ -25,6 +25,8 @@
 
 * Improve striped line look on tables with multiple layers of header rows. (#31)
 
+* Adding escape to `add_header_above` and `group_rows`
+
 kableExtra 0.3.0
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 * Improved the look of HTML grouped header row (again) by adding spaces between