fix: mongoose ts problem (#19)

Author: aron98

node.dockerfile

@@ -17,7 +17,7 @@
 # docker run -d --name my-mongodb mongo
 # docker run -d -p 3000:3000 --link my-mongodb:mongodb --name nodeapp danwahlin/nodeapp
 
-FROM        node:alpine
+FROM        node:lts-alpine
 
 LABEL       author="Dan Wahlin"
 
@@ -33,4 +33,4 @@ RUN         npm install
 COPY        . ./
 EXPOSE      $PORT
 
-ENTRYPOINT  ["npm", "start"]
+ENTRYPOINT  ["npm", "start"]