我知道图像可以放置在MD的MD语法或，但我很难将SVG放置在MD的代码托管在GitHub上。
Ultimately using rails3, and changing the model frequently right now, so I am using RailRoady to generate an SVG of the schema diagram of the models. I would like for that SVG to then be placed in the ReadMe.md, and be displayed. When I open the SVG file locally, it does work, so how do I get the browser to render the SVG in the MD file? Given that the code will be dynamic until it is finalized (seemingly never), hosting the SVG in a separate place seems overkill and that I am missing an approach to accomplish this.
我想要包含的SVG在GitHub上:https://github.com/specialorange/FDXCM/blob/master/Rails/fdxcm/doc/models_brief.svg
我已经尝试了以下，以及一个实际的图像来验证语法是工作的，只是SVG代码没有被渲染:
![Overview][1]
[1]: https://github.com/specialorange/FDXCM/blob/master/doc/controllers_brief.svg "Overview"
<img src="https://raw.github.com/specialorange/FDXCM/master/doc/controllers_brief.svg">
[Google Doc](https://docs.google.com/drawings/d/1B95ajItJTAImL2WXISX0fkBLYk3nldea4Vm9eo-VyE4/edit) :
<img src="https://docs.google.com/drawings/pub?id=117XsJ1kDyaY-n8AdPS3_8jTgMyITqaoT3-ah_BSc9YQ&w=960&h=720">
<img src="https://raw.github.com/specialorange/FDXCM/master/doc/controllers_brief.svg">
<img src="https://docs.google.com/drawings/d/1B95ajItJTAImL2WXISX0fkBLYk3nldea4Vm9eo-VyE4/edit">
得到的结果:
1: https://github.com/specialorange/FDXCM/blob/master/Rails/fdxcm/doc/controllers_brief.svg“概述”
医生:
raw.github.com的目的是允许用户查看文件的内容，因此对于基于文本的文件，这意味着(对于某些内容类型)您可能会得到错误的标题和浏览器中的内容。
当这个问题被提出(2012年)时，svg并不管用。从那以后，Github进行了各种改进。现在(至少对于SVG)，发送了正确的Content-Type报头。
例子
下面列出的所有方法都可以。
为了创建下面的示例，我将问题中的SVG图像复制到github上的repo
使用相对路径链接到文件(工作，但显然只在github.com / github.io)
Code
<img src="./controllers_brief.svg">
结果
在github.com上查看工作示例。
链接到RAW文件
Code
<img src="https://raw.github.com/potherca-blog/StackOverflow/master/question.13808020.include-an-svg-hosted-on-github-in-markdown/controllers_brief.svg">
结果
使用?sanitize=true链接到RAW文件
Code
<img src="https://raw.github.com/potherca-blog/StackOverflow/master/question.13808020.include-an-svg-hosted-on-github-in-markdown/controllers_brief.svg?sanitize=true">
结果
链接到github.io上的文件
Code
<img src="https://potherca-blog.github.io/StackOverflow/question.13808020.include-an-svg-hosted-on-github-in-markdown/controllers_brief.svg">
结果
一些关于在此过程中发生的变化的评论:
Github has implemented a feature which makes it possible for SVG's to be used with the Markdown image syntax. The SVG image will be sanitized and displayed with the correct HTTP header. Certain tags (like <script>) are removed.
To view the sanitized SVG or to achieve this effect from other places (i.e. from markdown files not hosted in repos on http://github.com/) simply append ?sanitize=true to the SVG's raw URL.
As stated by AdamKatz in the comments, using a source other than github.io can introduce potentially privacy and security risks. See the answer by CiroSantilli and the answer by DavidChambers for more details.
The issue to resolve this was opened on Github on October 13th 2015 and was resolved on August 31th 2017
