DOCSP-45163-mongosync-toc-label (#473)

Author: ltran-mdb2

source/index.txt

@@ -38,7 +38,7 @@ common questions users have asked about ``mongosync``.
    :titlesonly:
 
    Quickstart </quickstart>
-   mongosync </about-mongosync>
+   About mongosync </about-mongosync>
    Install </installation>
    Connect </connecting>
    Cluster Topologies </topologies>