docs: add quotes to unstructured[local-inference] install instructions (langchain-ai#1208)

### Summary Corrects the install instruction for local inference to `pip install "unstructured[local-inference]"`

Author: MthwRobinson

docs/ecosystem/unstructured.md

@@ -10,7 +10,7 @@ This page is broken into two parts: installation and setup, and then references
 `unstructured` wrappers.
 
 ## Installation and Setup
-- Install the Python SDK with `pip install unstructured[local-inference]`
+- Install the Python SDK with `pip install "unstructured[local-inference]"`
 - Install the following system dependencies if they are not already available on your system.
  Depending on what document types you're parsing, you may not need all of these.
  - `libmagic-dev`

docs/modules/document_loaders/examples/unstructured_file.ipynb

@@ -17,7 +17,7 @@
  "outputs": [],
  "source": [
  "# # Install package\n",
- "!pip install unstructured[local-inference]\n",
+ "!pip install \"unstructured[local-inference]\"\n",
  "!pip install \"detectron2@git+https://github.com/facebookresearch/detectron2.git@v0.6#egg=detectron2\"\n",
  "!pip install layoutparser[layoutmodels,tesseract]"
  ]
@@ -166,7 +166,7 @@
  "Processing PDF documents works exactly the same way. Unstructured detects the file type and extracts the same types of `elements`. "
  ]
  },
- 
+
  {
  "cell_type": "code",
  "execution_count": 1,
@@ -221,7 +221,7 @@
  "source": [
  "docs[:5]"
  ]
- }, 
+ },
  {
  "cell_type": "code",
  "execution_count": null,