Relax molecule bounds

See https://github.com/ansible-community/molecule-hetznercloud/pull/27.

README.md

@@ -21,6 +21,20 @@ useful, please support my maintenance work financially through my
 Sponsor profile](https://github.com/sponsors/decentral1se). I do not receive
 any financial support from RedHat or Hetzner Cloud for this work.
 
+## Install
+
+```bash
+$ pip install molecule-hetznercloud
+```
+
+## Upgrade
+
+Please see the [CHANGELOG.md](./CHANGELOG.md) for migration guides.
+
+```bash
+$ pip install --upgrade molecule-hetznercloud
+```
+
 ## Usage
 
 You need to expose a `HCLOUD_TOKEN` environment variable in your environment.
@@ -31,10 +45,9 @@ Find out more about how to get one of those [over here](https://docs.hetzner.clo
 $ export HCLOUD_TOKEN=mycoolapitoken
 ```
 
-Then install the required Python package.
+Then create a role using the driver plugin.
 
 ```bash
-$ pip install molecule-hetznercloud
 $ molecule init role myrolename -d hetznercloud
 ```
 
@@ -78,12 +91,16 @@ It is possible to have the driver manage volumes during the test run.
 
 You can add the following stanza to your Molecule configuration to have
 Molecule create this volume for the managed VPS. This volume will be cleaned up
-after use.
+after use (**Please note**: there is a bug raised against clean-up right now,
+see [#24](https://github.com/ansible-community/molecule-hetznercloud/issues/24)
+for more).
 
 ```yaml
 volumes:
   - name: "molecule-hetznercloud-volume-1-${INSTANCE_UUID}"
+    location: /foo/bar
   - name: "molecule-hetznercloud-volume-2-${INSTANCE_UUID}"
+    size: 20
 ```
 
 Supported keys are:
@@ -145,6 +162,6 @@ Only doable by [Autonomic Cooperative](https://autonomic.zone/) members.
 $ sudo apt install -y direnv
 $ cp .envrc.sample .envrc
 $ direnv allow
-$ pip install -e .
+$ pip install -e . ansible
 $ cd integration && molecule test
 ```

setup.cfg

@@ -56,7 +56,7 @@ setup_requires =
     setuptools_scm_git_archive
 install_requires =
     hcloud >= 1.10.0, < 2
-    molecule >= 3.2.1, <= 3.3
+    molecule >= 3.2.1, < 4
     pyyaml >= 5.3.1, < 6
 
 [options.extras_require]