docs: update plugin information template in YAML

Author: Soulter

.github/ISSUE_TEMPLATE/PLUGIN_PUBLISH.yml

@@ -26,12 +26,13 @@ body:
       value: |
         ```json
         {
-          "name": "插件名",
-          "desc": "插件介绍",
+          "name": "插件名，请以 astrbot_plugin_ 开头",
+          "display_name": "用于展示的插件名，方便人类阅读",
+          "desc": "插件的简短介绍",
           "author": "作者名",
           "repo": "插件仓库链接",
           "tags": [],
-          "social_link": ""
+          "social_link": "",
         }
         ```
     validations: