Merge pull request #1001 from SvenDowideit/build-docs-in-local-fig-repo

add ./script/doc to build fig documentation using the docs.docker.com to...

script/docs

@@ -0,0 +1,11 @@
+#!/bin/sh
+set -ex
+
+# import the existing docs build cmds from docker/docker
+DOCSPORT=8000
+GIT_BRANCH=$(git rev-parse --abbrev-ref HEAD 2>/dev/null)
+DOCKER_DOCS_IMAGE="compose-docs$GIT_BRANCH"
+DOCKER_RUN_DOCS="docker run --rm -it -e NOCACHE"
+
+docker build -t "$DOCKER_DOCS_IMAGE" -f docs/Dockerfile .
+$DOCKER_RUN_DOCS -p $DOCSPORT:8000 "$DOCKER_DOCS_IMAGE" mkdocs serve