Update rebar.config

Author: deadtrickster

rebar.config

@@ -5,7 +5,7 @@
 
 {deps, [{prometheus, "4.0.0"},
         {opencensus,
-         {git, "https://github.com/census-instrumentation/opencensus-erlang",
+         {git, "https://github.com/census-instrumentation/opencensus-erlang.git",
           {branch, "master"}}}]}.
 % {shell, [{apps, [opencensus_erlang_prometheus]}]}.
 {cover_enabled, true}.