update docs

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

docs/20_Installation.md

@@ -10,7 +10,7 @@
     * optional: set custom target for generated certificates
     * optional: for testing enable Let's Encrypt stage server to prevent running into weekly limits during tests
     * optional: set a filter that must match to new certificate and all aliases
-  * templates/csr.txt
+  * UNUSED: templates/csr.txt
     * set location, company and department ... remark: (currently?) it is removed by LE
 
 A suggested structure is having acme.sh and this wrapper below the same parent directory, i.e.
@@ -26,7 +26,6 @@ A suggested structure is having acme.sh and this wrapper below the same parent d
   +-- iml-certman/
         |
         +-- certs/
-        +-- csr/
         +-- templates/
         + cm.sh
         + inc_config.sh

readme.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>

templates/readme.md

+# CSR template is not used anymore
+
+We added support for authentication with an dns alias.
+The CSR template won't be used anymore.