add Colab button

Author: kevelyn1

README.md

@@ -10,6 +10,9 @@ __Geosüsteemide modelleerimine__
 
 [![Run in MyBinder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/LandscapeGeoinformatics/csv_boxplots_nb2021/HEAD?filepath=regressioon_modelleerimine.ipynb)
 
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+[![Open in Colab](https://colab.research.google.com/assets/colab-badge.svg)](https://colab.research.google.com/github/LandscapeGeoinformatics/csv_boxplots_nb2021/HEAD?filepath=regressioon_modelleerimine.ipynb)
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 __Ruumiandmete analüüs__
 
 [![Run in MyBinder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/LandscapeGeoinformatics/csv_boxplots_nb2021/HEAD?filepath=statistika_ruumianalyys.ipynb)
@@ -51,3 +54,4 @@ We hope that the materials provided here would be helpful for others. Thus, we s
 
 <a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" align="left" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a>
 
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