Header image

_sass/jekyll-theme-cayman.scss

@@ -109,7 +109,8 @@ a {
   color: $header-heading-color;
   text-align: center;
   background-color: $header-bg-color;
-  background-image: linear-gradient(120deg, $header-bg-color-secondary, $header-bg-color);
+  background-image: url("./../../pawel-czerwinski-6lQDFGOB1iw-unsplash.jpg");
+  background-size: 100% auto;
 
   @include large {
     padding: 5rem 6rem;

index.md

@@ -137,6 +137,7 @@ The followings are valuable source of knowledge and inspiration for both the *Py
 * [Uniplot Python library](https://github.com/olavolav/uniplot)
 * [Machine Learning Mastery cGAN](https://machinelearningmastery.com/how-to-develop-a-conditional-generative-adversarial-network-from-scratch/)
 * [Exercise Threshold](https://www.exercisethresholds.com/)
+* Header photo by <a href="https://unsplash.com/@pawel_czerwinski?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Pawel Czerwinski</a> on <a href="https://unsplash.com/s/photos/data?utm_source=unsplash&utm_medium=referral&utm_content=creditCopyText">Unsplash</a>
 
 <p align="right">(<a href="#top">back to top</a>)</p>