docs: correcting typo that disabled GoogleAnalytics in doxygen docs
diff --git a/docs/ns3_html_theme/ns3_doxy_footer.html b/docs/ns3_html_theme/ns3_doxy_footer.html
index 5b606c6..848e0f3 100644
--- a/docs/ns3_html_theme/ns3_doxy_footer.html
+++ b/docs/ns3_html_theme/ns3_doxy_footer.html
@@ -25,7 +25,7 @@
 
   (function() {
     var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true;
-    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga. ↪ js';
+    ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js';
     var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s);
   })();