.gitignore in hachi-1.0.0 vs .gitignore in hachi-2.0.0

@@ -9,11 +9,11 @@
 /test/tmp/
 /test/version_tmp/
 /tmp/
 
 # Used by dotenv library to load environment variables.
-# .env
+.env
 
 ## Specific to RubyMotion:
 .dat*
 .repl_history
 build/
@@ -49,5 +49,9 @@
 # unless supporting rvm < 1.11.0 or doing something fancy, ignore this:
 .rvmrc
 
 # RSpec
 .rspec_status
+
+# Docker
+Dockerfile
+docker-compose.yml
\ No newline at end of file