Update README.md, Repl.it -> Replit with new badge (soxoj#692)

It's changed to Replit.com about two years ago, also there's a higher quality badge can be used ;)

Author: PeterDaveHello

README.md

@@ -44,7 +44,7 @@ Standalone EXE-binaries for Windows are located in [Releases section](https://gi
 Also you can run Maigret using cloud shells and Jupyter notebooks (see buttons below). 
 
 [![Open in Cloud Shell](https://user-images.githubusercontent.com/27065646/92304704-8d146d80-ef80-11ea-8c29-0deaabb1c702.png)](https://console.cloud.google.com/cloudshell/open?git_repo=https://github.com/soxoj/maigret&tutorial=README.md)
-<a href="https://repl.it/github/soxoj/maigret"><img src="https://user-images.githubusercontent.com/27065646/92304596-bf719b00-ef7f-11ea-987f-2c1f3c323088.png" alt="Run on Repl.it" height="50"></a>
+<a href="https://repl.it/github/soxoj/maigret"><img src="https://replit.com/badge/github/soxoj/maigret" alt="Run on Replit" height="50"></a>
 
 <a href="https://colab.research.google.com/gist/soxoj/879b51bc3b2f8b695abb054090645000/maigret-collab.ipynb"><img src="https://colab.research.google.com/assets/colab-badge.svg" alt="Open In Colab" height="45"></a>
 <a href="https://mybinder.org/v2/gist/soxoj/9d65c2f4d3bec5dd25949197ea73cf3a/HEAD"><img src="https://mybinder.org/badge_logo.svg" alt="Open In Binder" height="45"></a>