add imagemagick package

pehbehbeh · web-flow · commit 590bdd62625a · 2019-09-25T17:55:35.000+02:00
diff --git a/Dockerfile b/Dockerfile
@@ -19,6 +19,7 @@ RUN apk info \
         nginx \
         zlib-dev \
         icu-dev \
+        imagemagick \
         imagemagick-dev \
         libzip-dev \
         libjpeg-turbo-dev \
