Converted PowerPoint RAG how-to notebook to use Ingest v2 (#314)

Author: Paul-Cornell

api-reference/how-to/powerpoint.mdx

@@ -1,5 +1,6 @@
 ---
 title: "Work with PowerPoint files"
-url: "https://colab.research.google.com/drive/1NmLSmUMb9ozlELnWa3J4WwdrBfGomwPk"
+url: "https://colab.research.google.com/drive/1l_e7CyqfBUxBBDc6E6XIKtKV-8YWvmRX?usp=sharing"
 icon: "notebook"
----
+---
+

examplecode/notebooks.mdx

@@ -87,7 +87,7 @@ description: "Notebooks contain complete working sample code for end-to-end solu
     <br/>
     ```Unstructured``` ```LangChain``` ```Ollama``` ```Llama 3```
     </Card>
-    <Card title="Building RAG With PowerPoint presentations" href="https://colab.research.google.com/drive/1NmLSmUMb9ozlELnWa3J4WwdrBfGomwPk?usp=sharing">
+    <Card title="Building RAG With PowerPoint presentations" href="https://colab.research.google.com/drive/1l_e7CyqfBUxBBDc6E6XIKtKV-8YWvmRX?usp=sharing">
     <br/>
         A RAG solution that is based on PowerPoint files.
     <br/>