Merge pull request #24 from UncleGrumpy/fix_rebar.config

Fix new atomvm_app name in rebar.config

Author: fadushin

priv/rebar.config

@@ -21,5 +21,5 @@
     atomvm_rebar3_plugin
 ]}.
 {atomvm_rebar3_plugin, [
-    {packbeam, [{start, myapp}, prune]}
+    {packbeam, [{start, {{name}}}, prune]}
 ]}.