Replace invalid example in README with cargo example (#207)

The example in the README is outdated and no longer compiles.
To prevent this from happening again, this patch removes the
example entirely and instead introduces a new example `custom_host`
that will be checked during `cargo test`.

Fixes #183.

1 files changed, 13 insertions, 0 deletions

diff --git a/examples/custom_host.rs b/examples/custom_host.rs
new file mode 100644
index 0000000..3b1fd3e
--- /dev/null
+++ b/examples/custom_host.rs
@@ -0,0 +1,13 @@
+use futures::Future;
+use shiplift::Docker;
+
+fn main() {
+    let docker = Docker::host("http://yourhost".parse().unwrap());
+
+    let fut = docker
+        .ping()
+        .map(|pong| println!("Ping: {}", pong))
+        .map_err(|e| eprintln!("Error: {}", e));
+
+    tokio::run(fut);
+}