Plugin installation : Unable to read repository

還沒有人認領這個 Issue。

Hello,

When installing the plugin from [mapstruct website](https://mapstruct.org/documentation/ide-support/) or from [eclipse marketplace](https://marketplace.eclipse.org/content/mapstruct-eclipse-plugin), I have this error in eclipse:
```
Unable to read repository at https://mapstruct.org/eclipse/content.xml.
Certificate for doesn't match any of the subject alternative names: [*.github.com, www.github.com, github.io, github.com, *.github.io, githubusercontent.com, *.githubusercontent.com]
```
Can you look into it ?

I searched a little the website repository and found that there is no content.xml file in the [static/eclipse](https://github.com/mapstruct/mapstruct.org/tree/master/static/eclipse) folder, maybe it is related ? (I don't know anything about how to deploy and develop an eclipse plugin).

從安裝連結和 https://mapstruct.org/eclipse/content.xml 的 Eclipse 錯誤開始。檢查 mapstruct.org 的靜態 eclipse 目錄及其部署，尤其是回報的 content.xml 缺失問題。完成的標準是能夠成功讀取儲存庫，且外掛程式可以從網站和 Eclipse Marketplace 安裝。

由索引模型根據 Issue 內容生成。