Create .travis.yml
diff --git a/.travis.yml b/.travis.yml
new file mode 100644
index 0000000..9b5fc99
--- /dev/null
+++ b/.travis.yml
@@ -0,0 +1,7 @@
+language: erlang
+otp_release:
+  - 21.0.4
+  - 20.3.8.2
+sudo: false
+script:
+- ./rebar3 do compile, dialyzer