Update huggingface_length_function.ipynb (#2203)

HuggingFace -> Hugging Face

docs/modules/indexes/text_splitters/examples/huggingface_length_function.ipynb

@@ -5,8 +5,8 @@
    "id": "13dc0983",
    "metadata": {},
    "source": [
-    "# HuggingFace Length Function\n",
-    "Most LLMs are constrained by the number of tokens that you can pass in, which is not the same as the number of characters. In order to get a more accurate estimate, we can use HuggingFace tokenizers to count the text length.\n",
+    "# Hugging Face Length Function\n",
+    "Most LLMs are constrained by the number of tokens that you can pass in, which is not the same as the number of characters. In order to get a more accurate estimate, we can use Hugging Face tokenizers to count the text length.\n",
     "\n",
     "1. How the text is split: by character passed in\n",
     "2. How the chunk size is measured: by Hugging Face tokenizer"