Update to +h mixin in the pattern.

src/pg/core/_master-pattern.pug

@@ -5,12 +5,17 @@
 include ../_config
 block config
 
-mixin h(h) 
-	if headings[h]
-		if headings[h].indexOf("|") == -1
-			h2= headings[h]
+mixin h(h, p = null) 
+	if p !== null 
+		- text = headings[h].replace(/\*\*/g, p)
+	else 
+		- text = headings[h]
+
+	if text
+		if text.indexOf("|") == -1
+			h2= text
 		else 
-			- var cntnt = headings[h].split("|")
+			- var cntnt = text.split("|")
 			| <#{cntnt[0]}>#{cntnt[1]}</#{cntnt[0]}> 
 
 - const getDate = function(){