Update index.html download links (bobbyiliev#135)

Author: bobbyiliev

index.html

@@ -356,7 +356,7 @@ <h5 class="pb-2 text-xl font-bold leading-6 text-gray-400">Dark Theme</h5>
  <p class="mt-1 mb-4 text-base leading-6 text-gray-500">
  Download the Dark theme of the Introduction to Bash Scripting eBook
  </p>
- <a href="https://github.com/bobbyiliev/introduction-to-bash-scripting/blob/main/ebook/en/export/introduction-to-bash-scripting-dark.pdf" class="px-4 py-2 font-semibold text-gray-200 bg-gray-500 border border-green-700 rounded shadow btn btn-secundary hover:bg-gray-600"> Free Download</a>
+ <a href="https://github.com/bobbyiliev/introduction-to-bash-scripting/raw/main/ebook/en/export/introduction-to-bash-scripting-dark.pdf" class="px-4 py-2 font-semibold text-gray-200 bg-gray-500 border border-green-700 rounded shadow btn btn-secundary hover:bg-gray-600"> Free Download</a>
  </div>
  </div>
 
@@ -376,7 +376,7 @@ <h5 class="pb-2 text-xl font-bold leading-6 text-gray-600">Light Theme</h5>
  <p class="mt-1 mb-4 text-base leading-6 text-gray-500">
  Download the Light theme of the Introduction to Bash Scripting eBook
  </p>
- <a href="https://github.com/bobbyiliev/introduction-to-bash-scripting/blob/main/ebook/en/export/introduction-to-bash-scripting-light.pdf" class="px-4 py-2 font-semibold text-white bg-blue-500 border border-green-700 rounded shadow btn btn-secundary hover:bg-blue-600"> Free Download</a>
+ <a href="https://github.com/bobbyiliev/introduction-to-bash-scripting/raw/main/ebook/en/export/introduction-to-bash-scripting-light.pdf" class="px-4 py-2 font-semibold text-white bg-blue-500 border border-green-700 rounded shadow btn btn-secundary hover:bg-blue-600"> Free Download</a>
  </div>
  </div>
  </div>