Set title of v0.15.1 to v0.15.1 with mike 2.1.3

Author: doc-bot

versions.json

@@ -1,7 +1,7 @@
 [
   {
     "version": "v0.15.1",
-    "title": "v0.15.1 (latest)",
+    "title": "v0.15.1",
     "aliases": [
       "latest"
     ]