update talks

Author: madawei2699

content/talk.zh-cn.md

@@ -5,17 +5,29 @@ keywords = ""
 outputs = "html"
 +++
 
-## i18N in Java
+## 2021
+
+### i18N in Java
 
 - [Slide](https://talk.bmpi.dev/2021/i18n-java)
 - [PDF](https://github.com/bmpi-dev/talk.bmpi.dev/blob/master/slides/2021/i18n_java/i18n_java.pdf)
 
-## Web Traffic Research
+## 2020
+
+### Web Traffic Research
 
 - [Slide](https://talk.bmpi.dev/2020/web-traffic-research)
 - [PDF](https://github.com/bmpi-dev/talk.bmpi.dev/blob/master/slides/2020/web_traffic_research/web_traffic_research.pdf)
 
-## Elixir
+## 2019
+
+### Elixir
 
 - [Slide](https://talk.bmpi.dev/2019/elixir)
 - [PDF](https://github.com/bmpi-dev/talk.bmpi.dev/blob/master/slides/2019/elixir/elixir.pdf)
+
+## 2016
+
+### 小白的交易之路
+
+- [Slide](/money/road_to_trading/)