Problem: keywords could not contain a space

Solution: allow space in keywords

main.go

@@ -741,7 +741,7 @@ func (h *graphHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 func (h *indexHandler) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	defer r.Body.Close()
 
-	metaKV, err := regexp.Compile(`(\w+)::\s+(.*)`)
+	metaKV, err := regexp.Compile(`(\w[ \w]+)::\s+(.*)`)
 	if err != nil {
 		log.Fatal(err)
 	}