video tutorials

Author: astorfi

README.rst

@@ -191,8 +191,8 @@ Warm-up
 .. |Welcome| image:: https://colab.research.google.com/assets/colab-badge.svg
    :target: https://colab.research.google.com/github/instillai/TensorFlow-Course/blob/master/codes/ipython/0-welcome/welcome.ipynb
 
-.. |videowelcome| image:: https://github.com/instillai/TensorFlow-Course/blob/master/_img/mainpage/yt_logo_pms_light.eps
-  :target: https://github.com/instillai/TensorFlow-Course/blob/master/_img/mainpage/yt_logo_pms_light.eps
+.. |videowelcome| image:: https://github.com/instillai/TensorFlow-Course/blob/master/_img/mainpage/yt_logo_rgb_light.png
+  :target: https://github.com/instillai/TensorFlow-Course/blob/master/_img/mainpage/yt_logo_rgb_light.png