update doc

ysmood · ysmood · commit 6aba0ed5c798 · 2021-02-24T05:54:13.000+09:00
diff --git a/understand-context.md b/understand-context.md
@@ -81,4 +81,4 @@ func heartbeat(ctx context.Context) {
 		fmt.Println("beat")
 	}
 }
-```
+```
diff --git a/why-rod.md b/why-rod.md
@@ -74,4 +74,4 @@ Rod is the name of the control device for puppetry, such as the brown stick in t
 The meaning is we are the puppeteer, the browser is the puppet, we use the rod to control the puppet.
 
 [chromedp]: https://github.com/chromedp/chromedp
-[puppeteer]: https://github.com/puppeteer/puppeteer
+[puppeteer]: https://github.com/puppeteer/puppeteer

Original file line number	Diff line number	Diff line change
`@@ -81,4 +81,4 @@ func heartbeat(ctx context.Context) {`
`81`	`81`	`fmt.Println("beat")`
`82`	`82`	`}`
`83`	`83`	`}`
`84`		-```
	`84`	+```