* nroam.el (nroam--insert-backlinks-heading): Simplify

nroam.el

@@ -210,11 +210,9 @@ Make the region inserted by BODY read-only, and marked with
 
 (defun nroam--insert-backlinks-heading (count)
   "Insert the heading for the backlinks section with a COUNT."
-  (insert (if (= count 0)
-              "* No linked reference\n"
-            (format "* %s %s\n"
-                    count
-                    (nroam--pluralize count "linked reference")))))
+  (insert (format "* %s %s\n"
+                  (if (= count 0) "No" count)
+                  (nroam--pluralize count "linked reference"))))
 
 (defun nroam--insert-backlink-group (group)
   "Insert all backlinks in GROUP."