[BUG] Filename renders correctly in preview, but not in GitHub.

[developersCradle]

Describe the bug
Possibility bug when filename is lowercase. In preview mode renders this one fine, even thought in GitHub it is not being rendered. Image name is lowercase. For Example test.PNG and tag to render

Environment

• OS: Windows 10
• VSCode: 1.92.2
• Markdown Preview Enhanced: v0.8.13

To Reproduce
Steps to reproduce the behavior:

1. Put following tag into .md file with test.PNG image in same folder.
2. Commit and push it to repository.
3. Go see repository page.
4. Pic in GitHub is not rendered while in VsCode preview mode it is.

Expected behavior
It should not render this in preview mode, if its not formatted in GitHub correctly. Or GitHub Should render this even thought file name is not case sensitive.

Markdown file
Any GitHub Flavored Markdown file with following tag
<img src="Test.PNG" alt="This will shown in github, while pic should be rendered"width="700"/>

Screenshots

1. In GihHub
2. Inside VScode preview mode