Add Dockerfile

Author: urohit011

Dockerfile

@@ -0,0 +1,11 @@
+FROM node:lts
+
+WORKDIR /yaml-language-server
+
+COPY . .
+
+RUN yarn install && \
+    yarn run build
+
+ENTRYPOINT [ "node", "./out/server/src/server.js" ]
+CMD [ "--stdio" ]