Add git

mtsmfm · mtsmfm · commit 2d55ad5f0861 · 2017-11-07T02:18:15.000+09:00
diff --git a/Dockerfile b/Dockerfile
@@ -1,5 +1,7 @@
 FROM ruby:2.4.2-alpine
 
+RUN apk add --no-cache git
+
 WORKDIR /app
 
 COPY lib/language_server/version.rb /app/lib/language_server/
