update workshop with new titan embeddings

03_QuestionAnswering/01_qa_w_rag_claude.ipynb

@@ -234,7 +234,7 @@
    "source": [
     "After downloading we can load the documents with the help of [DirectoryLoader from PyPDF available under LangChain](https://python.langchain.com/en/latest/reference/modules/document_loaders.html) and splitting them into smaller chunks.\n",
     "\n",
-    "Note: The retrieved document/text should be large enough to contain enough information to answer a question; but small enough to fit into the LLM prompt. Also the embeddings model has a limit of the length of input tokens limited to 512 tokens, which roughly translates to ~2000 characters. For the sake of this use-case we are creating chunks of roughly 1000 characters with an overlap of 100 characters using [RecursiveCharacterTextSplitter](https://python.langchain.com/en/latest/modules/indexes/text_splitters/examples/recursive_text_splitter.html)."
+    "Note: The retrieved document/text should be large enough to contain enough information to answer a question; but small enough to fit into the LLM prompt. Also the embeddings model has a limit of the length of input tokens limited to 8192 tokens, which roughly translates to ~32,000 characters. For the sake of this use-case we are creating chunks of roughly 1000 characters with an overlap of 100 characters using [RecursiveCharacterTextSplitter](https://python.langchain.com/en/latest/modules/indexes/text_splitters/examples/recursive_text_splitter.html)."
    ]
   },
   {