Add "Highlight" field to "Hit" structure.

structs.go

@@ -145,12 +145,13 @@ type Shard struct {
 
 // Represent a hit returned by a search
 type Hit struct {
-	Index  string                 `json:"_index"`
-	Type   string                 `json:"_type"`
-	Id     string                 `json:"_id"`
-	Score  float64                `json:"_score"`
-	Source map[string]interface{} `json:"_source"`
-	Fields map[string]interface{} `json:"fields"`
+	Index     string                 `json:"_index"`
+	Type      string                 `json:"_type"`
+	Id        string                 `json:"_id"`
+	Score     float64                `json:"_score"`
+	Source    map[string]interface{} `json:"_source"`
+	Highlight map[string]interface{} `json:"highlight"`
+	Fields    map[string]interface{} `json:"fields"`
 }
 
 // Represent the hits structure as returned by elasticsearch