Prepare more docs

README.md

@@ -7,14 +7,30 @@ Ansible libraries for manging Gandi resources.
 ## Requirements
 
 - [Ansible >= 2.9.6](https://pypi.org/project/ansible/)
-- [Gandi.cli >= 1.5](https://pypi.org/project/gandi.cli/)
+- [dns-lexicon >= 3.3.19](https://pypi.org/project/dns-lexicon/) (if using `gandi_dns` module)
 
 ```bash
-$ pip install ansible==2.6.9 gandi.cli==1.5
+$ pip install ansible==2.6.9 "dns-lexicon[gandi]==3.3.19"
 ```
 
 These should be present on the localhost where you run Ansible.
 
+## Gandi DNS Setup
+
+If you want to use the `gandi_dns` module you need to prepare the environment.
+
+```bash
+export PROVIDER="gandi"
+export LEXICON_GANDI_AUTH_TOKEN="${pass show users/decentral1se/gandi/api_key)"
+export LEXICON_GANDI_API_PROTOCOL="rest"
+```
+
+You can test that everything is working by running the following.
+
+```bash
+$ lexicon gandi list autonomic.zone
+```
+
 ## Usage
 
 Include an entry in your `requirements.yml` like so.
@@ -28,10 +44,3 @@ Include an entry in your `requirements.yml` like so.
 See the [releases](https://git.autonomic.zone/autonomic-cooperative/autonomic.gandi/releases) for which is the latest version.
 
 Then make sure to download the role with `ansible-galaxy install -r requirements.yml`.
-
-## Roadmap
-
-- [ ] DNS entries
-  - [ ] Create
-  - [ ] Update
-  - [ ] Delete