Handle dns alias domain

• replace method of using a pre generated csr and key file
• add domain alias method by detecting a HOME domain ...

docs/10_Home.md

-# iml-certman
+# IML certman
 
-Wrapper for **acme.sh** to create Let's Encrypt certificates based on CSR files using DNS authentication.
+Wrapper for **acme.sh** to create Let's Encrypt certificates using DNS authentication.
 It was written to create/ renew all needed certificates at a central system to deploy it from there (Ansible, Puppet, ...).
 
 source: <https://git-repo.iml.unibe.ch/open-source/iml-certman>
 license: GNU GPL 3.0 <http://www.gnu.org/licenses/gpl-3.0.html>
+
+## Requirements
+
+* bash
+* openssl
+* curl
+* acme.sh client