doc: add consumer&provider usage
diff --git a/docs/provider.md b/docs/provider.md
index e69de29..8726a36 100644
--- a/docs/provider.md
+++ b/docs/provider.md
@@ -0,0 +1,22 @@
+# Provider Configurations
+
+## Base Config
+Provider config is under the dubboerl application with sys.config
+```erlang
+{dubboerl,[
+ %% other config ...
+ {provider,[
+ {module_implements,interface_module,interface_fullname,[Options]},
+ %% eg:
+ {user_impl,user,<<"com.ifcoder.demo.facade.User">>,[Option]}
+ ]}
+]}
+```
+
+| ConfigName | Type | DefaultValue | Remarks |
+| --- | --- | --- | --- |
+| module_implements | atom() | - | The service implements module name|
+| interface_module | atom() | - | Interface module name is transfer form java jar |
+| interface_fullname | binary() | - | Interface full name is the java class name |
+
+Option is to be added.
\ No newline at end of file
