edit doc

docs/v4/README.md

@@ -14,8 +14,8 @@ It is an ORM, a small compiler, a dynamic SQL languages
   and '@P1')
 * Dynamic SQL(Write code freely in SQL),pagination, ```py_sql``` query lang and ```html_sql```(Inspired Mybatis).
 * Dynamic configuration connection pool(Based on the https://github.com/rbatis/fast_pool)
-* Supports logging, customizable logging based on `log` crate
-* 100% Safe `Rust` with `#![forbid(unsafe_code)]` enabled
+* Supports Logging based on interceptor implementation
+* 100% Safe pure `Rust` with `#![forbid(unsafe_code)]` enabled
 * Support use Trait System Add ```py_sql/ html_sql```
   functions.[see](https://github.com/rbatis/rbatis/blob/master/example/src/macro_proc_htmlsql_custom_func.rs)
 * [rbatis/example (import into Clion!)](example/src)