Merge commit 'f96384a3b596f9bc0a3a035970b09b2c601f0ccb'

docs/content/en/functions/union.md

@@ -1,26 +1,18 @@
 ---
 title: union
-# linktitle: union
 description: Given two arrays or slices, returns a new array that contains the elements or objects that belong to either or both arrays/slices.
-date: 2017-02-01
-publishdate: 2017-02-01
-lastmod: 2017-03-12
 categories: [functions]
 menu:
   docs:
-    parent: "functions"
+    parent: functions
 keywords: [collections,intersect,union,complement]
 signature: ["union SET1 SET2"]
-workson: []
-hugoversion: 0.20
 relatedfuncs: [intersect,where]
-deprecated: false
-aliases: []
 ---
 
 Given two arrays (or slices) A and B, this function will return a new array that contains the elements or objects that belong to either A or to B or to both. The elements supported are strings, integers, and floats (only float64).
 
-```
+```go-html-template
 {{ union (slice 1 2 3) (slice 3 4 5) }}
 <!-- returns [1 2 3 4 5] -->
 
@@ -38,7 +30,7 @@ Given two arrays (or slices) A and B, this function will return a new array that
 
 This is also very useful to use as `OR` filters when combined with where:
 
-```
+```go-html-template
 {{ $pages := where .Site.RegularPages "Type" "not in" (slice "page" "about") }}
 {{ $pages = $pages | union (where .Site.RegularPages "Params.pinned" true) }}
 {{ $pages = $pages | intersect (where .Site.RegularPages "Params.images" "!=" nil) }}