[mod] modified readme

- removed zero width spaces
 - added some more examples and roadmap

README.md

@@ -4,7 +4,7 @@
 	A simplistic Dynamic DNS-ish server.
 </h4>
 
-`rynDNS` is a simple REST-API for `name` to `ip` resolving in the spirit of Dynamic DNS. Clients can `PUT` their `ipv4` address up to be read by other clients. Access is controlled via `api_key` and permissions (`read`, `write`, `admin`).
+`rynDNS` is a simple REST-API for `name` to `ip` resolving in the spirit of Dynamic DNS. Clients can `PUT` their `ipv4` address up to be read by other clients. Access is controlled via `api_key` and permissions (`read`, `write`, `admin`). No special client side application needed, just something to do a `POST` request like `wget`, `curl` or `httpie`. 
 
 <p align="center">
     <strong>
@@ -12,6 +12,7 @@
         • <a href="#getting-started">Getting started</a> 
         • <a href="#rest-api">Rest API</a> 
         • <a href="#configuration">Configuration</a>
+        • <a href="#roadmap">Roadmap</a>
 	</strong>
 </p>
 
@@ -44,6 +45,36 @@ JSON_REQUEST_BODY='{
 }'
 http post $API_SERVER/admin/client $API_KEY <<< $JSON_REQUEST_BODY
 ```
+Updating a write client's `ipv4`:
+```bash
+# using httpie
+API_SERVER=http://localhost:3000/rynDNS
+API_KEY=X-API-Key:zW3If4s5.3d6129cc.48d41d2a28b16a9a274d3f407026aee2b82cddbb3c11a5496ffe329c78e5d54b
+
+# automatically set ip based on request itself
+http put $API_SERVER/client $API_KEY
+
+# set a custom ip for the client
+JSON_REQUEST_BODY='{
+  "ipv4": "115.16.0.99"
+}'
+http put $API_SERVER/client $API_KEY <<< $JSON_REQUEST_BODY
+```
+Reading a write client's `ipv4` with a read client:
+```bash
+# using httpie
+API_SERVER=http://localhost:3000/rynDNS
+API_KEY=X-API-Key:zW3If4s5.28aef5cb.d502cb94ba0802c6363f95ecb3a70de7e2e4b889779e435b7c033f2c72ed4f20
+CLIENT_NAME=write_client
+
+http get $API_SERVER/clients/$CLIENT_NAME $ API_KEY
+
+# returns clients name and ipv4  as json
+#{
+#  "name": "write_client",
+#  "ipv4": "115.16.0.99"
+#}
+```
 ## REST API
 A detailed and interactive specification can be found in the [demo](https://demo.api.pdev.dev) which is a render of the OpenAPI specification [api.yml](api.yml) with `swager-ui`.
 
@@ -55,26 +86,26 @@ The following is a quick overview of the available commands.
 Permission `x`
 
 * [`POST /admin/client`](https://demo.api.pdev.dev/#/admin/create_client) - Create or update a client and retrieve a new API key
-* [`​PUT /admin​/client`](https://demo.api.pdev.dev/#/admin/update_client) - Update an existing client
+* [`PUT /admin/client`](https://demo.api.pdev.dev/#/admin/update_client) - Update an existing client
-* [`​GET ​/admin​/clients`](https://demo.api.pdev.dev/#/admin/get_all_client) - Retrieve all clients information
+* [`GET /admin/clients`](https://demo.api.pdev.dev/#/admin/get_all_client) - Retrieve all clients information
-* [`​GET ​/admin​/clients​/{client_name}`](https://demo.api.pdev.dev/#/admin/get_client) - Retrieve client information
+* [`GET /admin/clients/{client_name}`](https://demo.api.pdev.dev/#/admin/get_client) - Retrieve client information
-* [`DELETE ​/admin​/clients​/{client_name}`](https://demo.api.pdev.dev/#/admin/delete_client) - Delete an existing client
+* [`DELETE /admin/clients/{client_name}`](https://demo.api.pdev.dev/#/admin/delete_client) - Delete an existing client
 
 ### Client (write)
 Permission `w`
 
-* [`​PUT /client`](https://demo.api.pdev.dev/#/client%20(write)/update_client_ip) - Update ipv4 client information based on request IP or body if present
+* [`PUT /client`](https://demo.api.pdev.dev/#/client%20(write)/update_client_ip) - Update ipv4 client information based on request IP or body if present
 * [`DELETE /client`](https://demo.api.pdev.dev/#/client%20(write)/delete_client_ip) - Delete the requesting client's ipv4 information
 
 ### Client (read)
 Permission `r`
 
-* [`​GET ​/clients​/{client_name}`](https://demo.api.pdev.dev/#/client%20(read)/get_client_ip) - Get ipv4 client information
+* [`GET /clients/{client_name}`](https://demo.api.pdev.dev/#/client%20(read)/get_client_ip) - Get ipv4 client information
 
 ### Public
 Client attribute `public_ip: true`
 
-* [`GET ​/public/{client_name}`](https://demo.api.pdev.dev/#/public/get_public_client_ip) - Get ipv4 client information
+* [`GET /public/{client_name}`](https://demo.api.pdev.dev/#/public/get_public_client_ip) - Get ipv4 client information
 
 ## Configuration
 
@@ -96,3 +127,9 @@ RAILS_API_DEMO: 1
 # [DOCKER only] set cycle to reset demo data [default: 60m]
 RAILS_DEMO_RESET: 60m
 ```
+
+## Roadmap
+
+* `Public Mode` - to allow for quick deployment without having to create clients/api-keys in a trusted environment (see #1)
+* Support Query Strings - as alternative to api key in header and json body
+* DNS Server in Docker container - resolve `client_name`s via DNS server