Patch Custom Logo Badges

[GabriOliv]

Add "Custom Logo" Section:

• add how to create badges with custom logo using Base64 images and Shields.io
• add examples of badges with custom logo
• update README.md
• update README.rst

---

Fix:

• fixed broken link line in README.rst

[Naereen]

Hi @GabriOliv,
It looks good.

• Could you check on your branch to see that the <details>...</details> markup with Markdown inside works fine on the GitHub (automatic) preview for the new README.md file please? I have tried it elsewhere and was sometimes disappointed to see that inside it only pure HTML was allowed. Please include a screenshot if you can, here by replying with a comment.

• Also maybe there are too many examples and it will take too much vertical space (horizontal space is fine). Can you check that the markdown code is well displayed in one line, and not many lines?

Thanks

[GabriOliv]

Task 1:

---

---

Task 2:

[Naereen]

Great! Thanks!