chore: Update readme

- prepare for 3.11.0 release
- add flag documentation for wait-on-error

Author: JonasProgrammer

README.md

@@ -15,8 +15,8 @@ You can find sources and pre-compiled binaries [here](https://github.com/JonasPr
 
 ```bash
 # Download the binary (this example downloads the binary for linux amd64)
-$ wget https://github.com/JonasProgrammer/docker-machine-driver-hetzner/releases/download/3.10.0/docker-machine-driver-hetzner_3.10.0_linux_amd64.tar.gz
-$ tar -xvf docker-machine-driver-hetzner_3.10.0_linux_amd64.tar.gz
+$ wget https://github.com/JonasProgrammer/docker-machine-driver-hetzner/releases/download/3.11.0/docker-machine-driver-hetzner_3.11.0_linux_amd64.tar.gz
+$ tar -xvf docker-machine-driver-hetzner_3.11.0_linux_amd64.tar.gz
 
 # Make it executable and copy the binary in a directory accessible with your $PATH
 $ chmod +x docker-machine-driver-hetzner
@@ -112,6 +112,7 @@ $ docker-machine create \
 - `--hetzner-ssh-user`: Change the default SSH-User
 - `--hetzner-ssh-port`: Change the default SSH-Port
 - `--hetzner-primary-ipv4/6`: Sets an existing primary IP (v4 or v6 respectively) for the server, as documented in [Networking](#networking)
+- `--wait-on-error`: Amount of seconds to wait on server creation failure (0/no wait by default)
 
 #### Existing SSH keys
 
@@ -156,6 +157,7 @@ was used during creation.
 | `--hetzner-ssh-port`            | `HETZNER_SSH_PORT`            | 22                         |
 | `--hetzner-primary-ipv4`        | `HETZNER_PRIMARY_IPV4`        |                            |
 | `--hetzner-primary-ipv6`        | `HETZNER_PRIMARY_IPV6`        |                            |
+| `--wait-on-error`               | `WAIT_ON_ERROR`               | 0                          |
 
 #### Networking