I can not insert the image inside readme.dm on bitbucket
Code:
**## Modelo Relacional**

I can not insert the image inside readme.dm on bitbucket
Code:
**## Modelo Relacional**

Some possible problem points that I saw in your question, but that may not mean anything:
.md
to markdown , not .dm
Here in SOpt (and in other SE sites) we use Markdown extensively in the questions and answers. It's not the same Markdown as Bitbucket, but it's close enough. I made this next test in the formatting chic .
In my tests, I discarded the third item, but it is known if on Bitbucket he interprets differently, I will leave scratched only for consultation by neura