docs: update github issue (#4151)

docs/en/programming.md

@@ -27,7 +27,7 @@ GitHub provides some official RSS feeds:
 
 ### Repo Issues
 
-<RouteEn author="HenryQW" path="/github/issue/:user/:repo/:state?/:labels?" example="/github/issue/DIYgod/RSSHub/all/bug" :paramsDesc="['GitHub username', 'GitHub repo name', 'the state of the issues. Can be either `open`, `closed`, or `all`. Default: `open`.', 'a list of comma separated label names']" radar="1" />
+<RouteEn author="HenryQW AndreyMZ" path="/github/issue/:user/:repo/:state?/:labels?" example="/github/issue/DIYgod/RSSHub/all/bug" :paramsDesc="['GitHub username', 'GitHub repo name', 'the state of the issues. Can be either `open`, `closed`, or `all`. Default: `open`.', 'a list of comma separated label names']" radar="1" />
 
 ### Repo Pull Requests
 

docs/programming.md

@@ -77,7 +77,7 @@ GitHub 官方也提供了一些 RSS:
 
 ### 仓库 Issues
 
-<Route author="HenryQW" example="/github/issue/DIYgod/RSSHub" path="/github/issue/:user/:repo" :paramsDesc="['用户名', '仓库名']" radar="1"/>
+<Route author="HenryQW AndreyMZ" example="/github/issue/DIYgod/RSSHub/open/RSS%20wanted" path="/github/issue/:user/:repo/:state?/:labels?" :paramsDesc="['用户名', '仓库名', 'issue 状态，可选`open`,`closed`或`all`，默认为`open`', '标签列表，以逗号分隔']" radar="1"/>
 
 ### 仓库 Pull Requests
 

lib/routes/github/issue.js

@@ -32,7 +32,7 @@ module.exports = async (ctx) => {
 
     ctx.state.data = {
         allowEmpty: true,
-        title: `${user}/${repo} Issues`,
+        title: `${user}/${repo}${state ? ' ' + state.replace(/^\S/, (s) => s.toUpperCase()) : ''} Issues${labels ? ' - ' + labels : ''}`,
         link: host,
         item: data
             .filter((item) => item.pull_request === undefined)