Merge pull request #19 from Roblox/readme

Fix broken links and readibility improvements.

Author: shishir-a412ed

README.md

@@ -36,25 +36,28 @@ $ make build (This will build your containerd-driver binary)
 ```
 ./setup.sh
 ```
-The setup script will setup `containerd 1.3.4` and `nomad server+nomad-driver-containerd` (nomad server/client should already be installed on your system, and `setup.sh` only builds the driver) on your system, so you can try out [`example`](https://github.com/Roblox/nomad-driver-containerd/tree/readme/example) jobs.
+The setup script will setup `containerd 1.3.4` and `nomad server+nomad-driver-containerd` (nomad server/client should already be installed on your system, and `setup.sh` only builds the driver) on your system, so you can try out [`example`](https://github.com/Roblox/nomad-driver-containerd/tree/master/example) jobs.
+
+**NOTE** `setup.sh` overrides your existing `containerd` to `containerd-1.3.4`. This is needed for `io.containerd.runc.v2` runtime.<br/>
+Your original containerd systemd unit file will be backed up at `/lib/systemd/system/containerd.service.bkp` in case you wanna revert later.
 
 Once `setup.sh` is complete and the nomad server is up and running, you can check the registered task drivers (which will also show `containerd-driver`) using:
 ```
 $ nomad node status (Note down the <node_id>)
-$ nomad node status <node_id>
+$ nomad node status <node_id> | grep containerd-driver
 ```
 
 ## Run Example jobs.
 
-There are few example jobs in the [`example`](https://github.com/Roblox/nomad-driver-containerd/tree/readme/example) directory.
+There are few example jobs in the [`example`](https://github.com/Roblox/nomad-driver-containerd/tree/master/example) directory.
 
 ```
 $ nomad job run <job_name.nomad>
 ```
 will launch the job.<br/>
 
 **NOTE:** You need to run `setup.sh` before trying out the example jobs.<br/>
-More detailed instructions are in the [`example README.md`](https://github.com/Roblox/nomad-driver-containerd/tree/readme/example)
+More detailed instructions are in the [`example README.md`](https://github.com/Roblox/nomad-driver-containerd/tree/master/example)
 
 ## Tests
 ```

example/README.md

@@ -119,6 +119,8 @@ This container does the following:<br/>
 <li>Bind mounts /tmp/s1 (host) to /tmp/t1 (container).</li>
 </ol>
 
+**NOTE**: `/tmp/s1` should exist on the host, before you run **Privileged** job.<br/>
+
 **Exec into privileged container to check capabilities, devices and mounts.**
 
 ```