enhance documentation

doc/webfuse_provider.md

@@ -0,0 +1,30 @@
+# webfuse_provider command line options
+
+Inject a remote filesystem via webfuse.
+
+## Usage
+
+    webfuse_provider -u <url> [-p <path>] [-a <cert_path>]
+
+## Options
+
+| Short Option | Long Option | Argument | Description |
+| ------------ | ----------- | -------- | ----------- |
+| -h           | --help      | -        | print usage and exit |
+| -v           | --version   | -        | print version an exit |
+| -p           | --path      | path     | path of local filesystem to inject (default: .) |
+| -u           | --url       | url      | url of webfuse server |
+| -a           | --ca-path   | path     | path of ca file |
+
+## Examples
+
+- inject current directory:  
+  `webfuse_provider -u ws://localhost/`
+- inject a given directory:  
+  `webfuse_provider -u ws://localhost/ -p /path/to/directory`
+- inject current directory to port 8080:  
+  `webfuse_provider -u ws://localhost:8080/`
+- inject current directory via TLS:  
+  `webfuse_provider -u wss://localhost/`
+- inject current diectory via TLS using a specific ca:  
+  `webfuse_provider -u wss://localhost/ -a /path/to/server-cert.pem`