add README.md

Signed-off-by: Antonio Murdaca <runcom@redhat.com>

README.md

@@ -0,0 +1,38 @@
+skopeo
+=
+
+_Please be aware `skopeo` is still work in progress_
+
+`skopeo` is a command line utility which is able to _inspect_ an image from a remote Docker registry.
+By _inspect_ I mean it just fetches the image's manifest and it is able to show you a `docker inspect`-like
+json output. This tool, in constrast to `docker inspect`, helps you gather useful information about
+an image before pulling it (and use disk space).
+
+Example:
+```sh
+$ skopeo registry.access.redhat.com/rhel7 | jq '.Config.Labels'
+{
+  "Architecture": "x86_64",
+  "Authoritative_Registry": "registry.access.redhat.com",
+  "BZComponent": "rhel-server-docker",
+  "Build_Host": "rcm-img04.build.eng.bos.redhat.com",
+  "Name": "rhel7/rhel",
+  "Release": "38",
+  "Vendor": "Red Hat, Inc.",
+  "Version": "7.2"
+}
+```
+Building
+-
+```sh
+$ git clone https://github.com/runcom/skopeo
+$ make
+```
+Installing
+-
+```sh
+$ sudo make install
+```
+License
+-
+MIT