README.md in fakeit-0.6.3 vs README.md in fakeit-0.7.0

@@ -46,25 +46,49 @@
 
 ## Usage
 
     $ fakeit --spec <Local file or remote url>
 
-Command line options:
+### Command line options
 
     $ fakeit --help
     usage:
         --spec               spec file uri (required)
         -p, --port           custom port
         -q, --quiet          mute request and response log
+        -l, --log-file       redirect log to a file
         --permissive         log validation error as warning instead of denying request
         --use-example        use example provided in spec if exists
         --static             generate static response
         --static-types       generate static value for specified types, e.g. --static-types integer,string
         --static-properties  generate static value for specified properties, e.g. --static-properties id,uuid
 
     other options:
         -v, --version
         -h, --help
+
+### Configuration endpoint
+
+Mock server behaviour can be changed on the fly
+
+Retrieve current config:
+
+    GET /__fakeit_config__
+
+Update config:
+
+    PUT /__fakeit_config__
+
+Request and response:
+```json
+{
+  'permissive' => false,
+  'use_example' => true,
+  'static' => false,
+  'static_types' => ['integer'],
+  'static_properties' => ['id']
+}
+```
 
 **Notes:**
 * See [here](docs/random.md) for Openapi properties supported in random response generation
 * See [here](docs/static.md) for default value in static response generation
 * Regarding `--use-example` mode, property without example specified will still be randomly or statically generated