update docs

docs/wrap_cli.md

@@ -0,0 +1,41 @@
+# Wrap command line
+
+Another way to use oneFace is to wrap a command line program.
+From the perspective of implementation, it's a layer of wrapping
+around the oneFace API. You can use a YAML configuration file to
+describe the command line to be wrapped and the type, range and default
+value of each parameter.
+
+Here is an example YAML file:
+
+```YAML
+# example.yaml
+# The name of your app
+name: add
+
+# The target command to be wraped.
+# Use '{}' to mark all arguments.
+command: python -c "print({a} + {b})" 
+
+# List all argument's type and range
+arguments:
+
+  a:
+    type: int
+    range: [0, 10]
+
+  b:
+    type: int
+    range: [-10, 10]
+    default: 0
+
+# Interface specific config
+# These parameters will pass to the interface
+qt_config:
+  # qt related config
+  run_once: false
+
+dash_config:
+  # Dash related config
+  console_interval: 2000
+```

mkdocs.yml

@@ -12,6 +12,7 @@ nav:
   - Interface configuration:
     - Qt configs: qt_confs.md
     - Dash configs: dash_confs.md
+  - Wrap command line: wrap_cli.md
 
 markdown_extensions:
   - pymdownx.highlight:

oneface/wrap_cli/example.yaml

@@ -17,7 +17,6 @@ arguments:
     range: [-10, 10]
     default: 0
 
-
 # Interface specific config
 # These parameters will pass to the interface
 qt_config:
@@ -27,4 +26,3 @@ qt_config:
 dash_config:
   # Dash related config
   console_interval: 2000
-