diff --git "a/docs/10_\360\237\223\221_Features.md" "b/docs/10_\360\237\223\221_Features.md"
index 57c07ba6c7a9653bd24f920f826cf813d5c96559..2a3466ae707a8d5a93c359c4cc09f08dcc40342e 100644
--- "a/docs/10_\360\237\223\221_Features.md"
+++ "b/docs/10_\360\237\223\221_Features.md"
@@ -5,3 +5,4 @@
 * aliases can be defined to handle same redirects
 * optional debugging (will be written into http reponse header)
 * admin to list and filter all existing domains and redirects
+* debug processing
diff --git "a/docs/20_\342\226\266\357\270\217_Installation.md" "b/docs/20_\342\226\266\357\270\217_Installation.md"
index a274efa067c8c45078a98a5d11bb8b450f9abe2c..8b227806f3b0630a44f3c7dd5f332da6eb8ce6ca 100644
--- "a/docs/20_\342\226\266\357\270\217_Installation.md"
+++ "b/docs/20_\342\226\266\357\270\217_Installation.md"
@@ -26,7 +26,7 @@ to the public_html directory. The config folder is outside the webroot.
 ## Redirect all requests to index.php ##
 
 Redirect all requests to the index.php. Activate the .htaccess or (better)
-add the config of the htaccess file to the vhost config.
+add the config to the vhost config.
 
 ```text
 RewriteEngine On
diff --git "a/docs/30_\342\232\231\357\270\217_Configuration.md" "b/docs/30_\342\232\231\357\270\217_Configuration.md"
index 0897a78f682089badcb3ee2fe11826cfd3c3053e..210eab0d1092964479e78ad2678b79e6c07d61c2 100644
--- "a/docs/30_\342\232\231\357\270\217_Configuration.md"
+++ "b/docs/30_\342\232\231\357\270\217_Configuration.md"
@@ -3,8 +3,16 @@
 
 In the *./config/* folder are json files. Copy the dist files to the same filename without ".dist"
 
-* redirects_[FQDN].json
-* aliases.json
+* redirects_[FQDN].json - 
+* aliases.json - 
+
+You can create multipe redirect files `redirects_[FQDN].json`. We suggest to use the main domain as FQDN.
+If you have multiple domains that should use exactly the same redirects then use the `aliases.json`.
+
+Other requirements:
+
+* In the DNS you must point each domain to the redirect website.
+* In the apache web with multiple vhosts: add the need a server alias to process the hostname in the wanted vhost
 
 ## Redirects ##
 
diff --git a/readme.md b/readme.md
index d59789d85bb7bc4806f07dd3cefd1a5a620dff24..71ad0b2ece2760ad69c4c4b2984b5d407d8dff6f 100644
--- a/readme.md
+++ b/readme.md
@@ -5,6 +5,6 @@ Redirect urls of any domain that points here.
 
 Author: Axel Hahn; Institute for Medical Education; University of Bern
 
-License: GNUP GPL 3.0
-
-See the [docs](./docs)
+📄 Source: <https://git-repo.iml.unibe.ch/iml-open-source/redirect-handler> \
+📜 License: GNU GPL 3.0 \
+📖 Docs: <https://os-docs.iml.unibe.ch/redirect-handler/> or see the [docs](./docs)