Refactor : Using stable documentation link instead of latest link. (#…

…2055)

* Update topview.py

* Update index.py

mslib/index.py

@@ -155,7 +155,7 @@ def plots():
                       "For further info on how to generate it, run the " \
                       "<b>gallery --help</b> command line parameter of mswms.<br>" \
                       "An example of the gallery can be seen " \
-                      "<a href=\"https://mss.readthedocs.io/en/latest/gallery/index.html\">here</a>"
+                      "<a href=\"https://mss.readthedocs.io/en/stable/gallery/index.html\">here</a>"
         return render_template("/content.html", act="plots", content=content)
 
     @APP.route("/mss/code/<path:filename>")