Update Dockerfile (#676)

Add Chinese fonts ttf-wqy-microhei and ttf-wqy-zenhei

Author: lcnja

Base/Dockerfile

@@ -25,6 +25,8 @@ RUN apt-get -qqy update \
     sudo \
     unzip \
     wget \
+    ttf-wqy-microhei \
+    ttf-wqy-zenhei \
   && rm -rf /var/lib/apt/lists/* /var/cache/apt/* \
   && sed -i 's/securerandom\.source=file:\/dev\/random/securerandom\.source=file:\/dev\/urandom/' ./usr/lib/jvm/java-8-openjdk-amd64/jre/lib/security/java.security