docs: update docs

kevinten10 · kevinten10 · commit 8f2f2324e1b3 · 2021-11-23T12:11:09.000+08:00
diff --git a/docs/Log_design.md b/docs/Log_design.md
@@ -1,5 +1,5 @@
-## Log API design
+## Log design
 
-目前来看，Log遵循通用日志规范（slf4j），并且都是写入标准控制台，并由日志采集服务进行采集
+**API layer**: slf4j standard api
 
-无需自行定义一套API，直接使用标准日志库，并适配不同的采集器即可
+**Component layer**: diff appender for log4j/logback/...
diff --git a/docs/RPC_design.md b/docs/RPC_design.md
@@ -1,3 +1,3 @@
-## RPC API design
+## RPC design
 
-TODO
+![RPC layer](./capa-design/capa-rpc-layer.PNG)
