readme for running with docker with dockerized

.gitignore

@@ -1,5 +1,7 @@
 **/*.sw*
+server/exec-server
 server/ezmded
+server/exec-ezmded
 server/server
 server/testdata/files/**/*
 server/testdata/workd/**/*

server/README.md

@@ -0,0 +1,9 @@
+## running with docker
+
+d1=${d1:-$(mktemp -d)}
+d2=${d2:-$(mktemp -d)}
+docker run \
+	-v $d1:/main/public/files \
+	-v $d2:/main/public/media \
+	-p 3004:3004 \
+	--rm -it bel:bel