Update dockerfile to run on Ubuntu 18.04
diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..f9734fe
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,5 @@
+.git
+.cache
+.ipynb_checkpoints
+.mypy_cache
+Docs
\ No newline at end of file