add logo in readme

readme-en.md

@@ -1,3 +1,5 @@
+<img align="right" width="150px" src="https://raw.githubusercontent.com/tal-tech/zero-doc/main/doc/images/go-zero.png">
+
 # go-zero
 
 English | [简体中文](readme.md)

readme.md

@@ -1,3 +1,5 @@
+<img align="right" width="150px" src="https://raw.githubusercontent.com/tal-tech/zero-doc/main/doc/images/go-zero.png">
+
 # go-zero
 
 [English](readme-en.md) | 简体中文