add setting default accounts to gitbook
@@ -15,6 +15,15 @@ oidc-agent](#persisting-oidc-agent-through-bashrc).
All account configuration generated by ```oidc-gen``` are saved in this
oidc-agent directory. Additionally there is a config file named ```issuer.config```. This file can be used to specify a list of issuers (one issuer per line) that are used as suggestions by oidc-gen. oidc-gen will also update this issuer list after an account configuration was created successfully. oidc-agent installs a similar file under ```/etc/oidc-agent```, however, that file should not be edited by the user, but it might be updated with new oidc-agent versions.
+### Default Account Configuration for a Provider
+The just mentioned ```issuer.config``` file in the oidc-agent directory can also
+be used to set an default account configuration file for each provider by adding
+the shortname of this account configuration after the issuer url.
+A line in the ```issuer.config``` file should look the following:
+```
+<issuer_url>[<space><shortname>]
+```
+
## oidc-agent Integration
### Xsession Integration
oidc-agent has support for integration with Xsession, which is enabled by
