index redirect now can be overriden by environment variable

readme.md

@@ -13,8 +13,8 @@ sus URL shortener
 
         susmng [-s pls.cx] delete -l shortlink -v confirm
 
-susmng will assume the first server in the 'secrets' section if the -s flag is
-not provided.
+`susmng` will assume the first server in the `secrets` section of the configuration file if the -s
+flag is not provided.
 
 
 ## installation
@@ -31,20 +31,22 @@ not provided.
 
 #### server environment variables
 
-- `SECRET` - the secret used for signature verification
-- `LISTEN_ADDRESS` - the address the server is listening on (default is `0.0.0.0:80`)
+- `SECRET`---the secret used for signature verification
+- `LISTEN_ADDRESS`---the address the server is listening on (default is `0.0.0.0:80`)
+- `INDEX_GET_REDIRECT`---the URL the user should be redirected to if they try to access `/` on the
+   server (default is `http://alv.cx`)
 
 ### setting up susmng
 
-1. install susmng
+1. install `susmng`
 
         make install-susmng
 
-2. create config files
+2. create configuration files
 
         susmng init
 
-3. edit config files (`~/.config/susmng/config.json`) to add your secrets
+3. edit configuration files (`~/.config/susmng/config.json`) to add your secrets
 
 
 ![](sus.jpg)