use second level headings

README.md

@@ -7,13 +7,13 @@ So far it has modules for these domain provider APIs:
 - [http.net DNS API](https://www.http.net/docs/api/) (untested)
 - [dyn.com API](https://help.dyn.com/remote-access-api/perform-update/) (untested)
 
-# Dependencies
+## Dependencies
 - iproute2
 - curl
 - miniupnpc (optional, see the Configuration section)
 - bind (optional, when using the http.net DNS API)
 
-# Installation
+## Installation
 There's no automated installation yet. As an example we install the two scripts `homeserverdns-daemon` and `homeserverdns-update` to `/usr/bin` and the configuration file to `/etc`.
 
 ```shell
@@ -41,7 +41,7 @@ Once the configuration is done we can start homeserverdns using
 sudo systemctl start homeserverdns
 ```
 
-# Configuration
+## Configuration
 All configuration options are described in more detail in `homeserverdns.cfg`. This is only an overview on the most important options.
 
 First a protocol has to be defined, e.g.