Updates broken links inside integration with Elixir page

Author: hugobarauna

src/integrations/elixir.html

@@ -6,7 +6,7 @@
       heading="Use Elixir directly in Livebook"
       description="Livebook has an interactive environment to code in Elixir. You can use it to learn Elixir, explore Elixir packages, prototypes, scripts, and interactive data apps."
       image_src="/images/integration_details/elixir_details.png"
-      cta_link="https://github.com/livebook-dev/livebook/blob/main/lib/livebook/notebook/learn/elixir_and_livebook.livemd"
+      cta_link="https://github.com/livebook-dev/livebook/blob/main/lib/livebook/notebook/learn/intro_to_livebook.livemd#elixir-integration"
       cta_main="Learn more"
       cta_description="Elixir & Livebook"
   }}
@@ -27,13 +27,13 @@
     {{>
       integration_feature
         feature="Interactive UI to visualize, debug and edit Elixir pipelines"
-        description="Livebook has an interactive widget that lets you see the result of an Elixir pipeline, enable/disable pipeline steps, and re-order them through drag and drop. <a href='https://github.com/livebook-dev/livebook/blob/main/lib/livebook/notebook/learn/intro_to_kino.livemd#dbg' class='underline'>Learn how to do this.</a>"
+        description="Livebook has an interactive widget that lets you see the result of an Elixir pipeline, enable/disable pipeline steps, and re-order them through drag and drop. <a href='https://github.com/livebook-dev/livebook/blob/main/lib/livebook/notebook/learn/kino/intro_to_kino.livemd#dbg' class='underline'>Learn how to do this.</a>"
         image_src="/images/integration_details/elixir_interactive_UI.png"
     }}
     {{>
       integration_feature
         feature="Run a notebook within the context of a Mix project"
-        description="It's super easy to <a href='https://github.com/livebook-dev/livebook/blob/main/lib/livebook/notebook/learn/elixir_and_livebook.livemd#mix-projects' class='underline'>run code of a Mix project inside Livebook</a>. This can be useful for interactive development or for experimenting with your project's code."
+        description="It's super easy to <a href='https://github.com/livebook-dev/livebook/blob/main/lib/livebook/notebook/learn/intro_to_livebook.livemd#mix-projects' class='underline'>run code of a Mix project inside Livebook</a>. This can be useful for interactive development or for experimenting with your project's code."
         image_src="/images/integration_details/elixir_mix_context.png"
     }}
     {{>