changed docker file name

Author: Arunkoo

Client/DockerFile Client/DockerfileClient/DockerFile renamed to Client/Dockerfile

@@ -16,4 +16,4 @@ RUN npm install -g serve
 COPY --from=build /app/dist ./dist
 
 EXPOSE 3000
-CMD ["serve", "-s", "dist", "-l", "3000"]
+CMD ["serve", "-s", "dist", "-l", "3000"]