Configuration instructions on readme

1 files changed, 16 insertions, 2 deletions

diff --git a/README.md b/README.md
index 8243116..ca8c2df 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,6 @@
 # PowerDNSex
 
-**TODO: Add description**
+A client to [PowerDNS 4 API](https://doc.powerdns.com/md/httpapi/README/), with all CRUD operations to manage zones and records.
 
 ## Installation
 
@@ -22,8 +22,18 @@ If [available in Hex](https://hex.pm/docs/publish), the package can be installed
     end
     ```
 
+## Configuration with env vars
+Insert this in your Phoenix configuration files. Eg:  `config.exs`
+```elixir
+config :powerdnsex, url: {:system, "POWERDNS_URL"},
+                    token: {:system, "POWERDNS_TOKEN"}
+```
+Make sure you set those envinronment variables.
+
 ## Example usage
 
+### Zone Management
+
 ```elixir
 # CREATE ZONE:
 zone_model = %PowerDNSex.Models.Zone{
@@ -39,7 +49,12 @@ zone_model = %PowerDNSex.Models.Zone{
 
 # DELETE ZONE:
 res = PowerDNSex.delete_zone("example.com")
+```
 
+
+### Record management
+
+```elixir
 # CREATE RECORD:
 {:ok, zone} = PowerDNSex.show_zone("example.com")
 record = %{
@@ -85,5 +100,4 @@ record = %{
 }
 rrset = PowerDNSex.show_record("example.com", record)
 res = PowerDNSex.delete_record(zone, rrset)
-
 ```