doc link and badges

README.md

@@ -1,5 +1,7 @@
 # Numerical examples of strong order of convergence of the Euler method for random ordinary differential equations
 
+[![Docs](https://img.shields.io/badge/docs-main-orange.svg)](https://rmsrosa.github.io/rode_conv_em/) ![Main Tests Workflow Status](https://github.com/rmsrosa/rode_conv_em/workflows/CI/badge.svg) ![GitHub repo size](https://img.shields.io/github/repo-size/rmsrosa/rode_conv_em)
+
 This is a companion repository, with all the code for the simulations presented in the article "Improved error estimate for the order of strong convergence of the Euler method for random ordinary differential equations", by Peter E. Kloeden and Ricardo M. S. Rosa.
 
-Just check the documentation at ...
+Just check the [Documentation](https://rmsrosa.github.io/rode_conv_em/).