add Docker.ignore

Docker.gitignore

@@ -0,0 +1,19 @@
+.git
+.idea
+.DS_Store
+.gitignore
+README.md
+env.*
+logs/
+
+# Docker files
+.dockerignore
+Dockerfile
+Dockerfile-dev
+Dockerfile-prod
+docker-compose.yml
+
+# To prevent storing dev/temporary container data
+*.csv
+/tmp/*
+