updated README

README.md

@@ -2,8 +2,7 @@
 
 ## Supported
 
-Nginx: 1.10.3
+Only Nginx 1.10.3 and Debian Stretch.
-Debian: Stretch
 
 Other versions might work but are not tested.
 
@@ -36,7 +35,7 @@ force_ssl: True
 # array of upstream servers
 server: 
   -
-    # can be "unix:/path/to/socket" or "https://foo.bar" or "http://foo.bar"
+    # can be "unix:/path/to/socket" or "foo.bar" or "foo.bar:443"
     address: *mandatory*
 
     # monitor dns for changes
@@ -45,7 +44,7 @@ server:
 
 **vhosts**:
 ```
-# Array of server names, example: foo.bar
+# array of server names, example: foo.bar
 servername: []
 
 # set this server as default
@@ -57,10 +56,10 @@ listen:
 	nossl: False
 	nossl_port: 80
 
-# Example: https://upstream; If set to none no reverse proxy will be set up.
+# example: "https://upstream". If set to None no reverse proxy will be set up.
 backend: None
 
-# Set ssl certs to letsencrypt paths and enable letsencrypt for this vhost
+# sets ssl certs to letsencrypt paths and enable letsencrypt for this vhost
 letsencrypt: False
 
 # array of locations, see below
@@ -72,7 +71,7 @@ locations: [*locationconfig*, .. ]
 # a match definition, for example "/", see nginx docu: https://nginx.org/en/docs/http/ngx_http_core_module.html#location
 match: ''
 
-# path, only set if not none
+# an absolut unix path, only set if not none
 alias: None
 ```