Update README.md

Author: Renat Zubairov

README.md

@@ -1,3 +1,25 @@
 # podio-component
-Podio API component template for elastic.io platform
+Podio API component for elastic.io platform
+
+## Create new App in Podio
+
+In order to make OAuth work you need a new App in your Podio. During app creation process you will be asked to specify
+the callback URL, to process OAuth auehtncation via elastic.io platform your callback URL should be 
+
+```
+https://your-tenant.elastic.io/callback/oauth2
+```
+
+More information you can find [here](https://developers.podio.com/authentication)
+
+
+## Configure OAuth Client key/secret
+
+In the component repository you need to specify OAuth Client credentials as environment variables. You would need two variables
+
+![image](https://cloud.githubusercontent.com/assets/56208/10132996/4de54eac-65da-11e5-92aa-a8b102d633e5.png)
+
+You would need two variables:
+ * ```PODIO_CLIENT_KEY``` - your OAuth client key
+ * ```PODIO_CLIENT_SECRET``` - your OAUth client secret