修改了issue模板

aQua · aQua · commit e219b22f9e2a · 2018-05-21T11:33:19.000+08:00
diff --git a/.github/issue_template.md b/.github/issue_template.md
@@ -6,4 +6,4 @@
 
 -------
 
-有偿答疑，[点击后，扫码付费](https://github.com/aQuaYi/LeetCode-in-Go/master/.github/pay.png)
+有偿答疑，[点击后，扫码付费](https://github.com/aQuaYi/LeetCode-in-Go/blob/master/.github/pay.png)

Original file line number	Diff line number	Diff line change
`@@ -6,4 +6,4 @@`
`6`	`6`
`7`	`7`	`-------`
`8`	`8`
`9`		`-有偿答疑，[点击后，扫码付费](https://github.com/aQuaYi/LeetCode-in-Go/master/.github/pay.png)`
	`9`	`+有偿答疑，[点击后，扫码付费](https://github.com/aQuaYi/LeetCode-in-Go/blob/master/.github/pay.png)`