add everyting for docs

docs/extras/integrations/document_loaders/merge_doc_loader.ipynb

@@ -0,0 +1,104 @@
+{
+ "cells": [
+  {
+   "cell_type": "markdown",
+   "id": "dd7c3503",
+   "metadata": {},
+   "source": [
+    "# MergeDocLoader\n",
+    "\n",
+    "Merge the documents returned from a set of specified data loaders."
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 1,
+   "id": "e08dfff1",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from langchain.document_loaders import WebBaseLoader\n",
+    "\n",
+    "loader_web = WebBaseLoader(\n",
+    "    \"https://github.com/basecamp/handbook/blob/master/37signals-is-you.md\"\n",
+    ")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 2,
+   "id": "07b42b2e",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from langchain.document_loaders import PyPDFLoader\n",
+    "\n",
+    "loader_pdf = PyPDFLoader(\"../MachineLearning-Lecture01.pdf\")"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 3,
+   "id": "912ede96",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "from langchain.document_loaders.merge import MergedDataLoader\n",
+    "\n",
+    "loader_all = MergedDataLoader(loaders=[loader_web, loader_pdf])"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 4,
+   "id": "9d001311",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "docs_all = loader_all.load()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": 8,
+   "id": "b9097486",
+   "metadata": {},
+   "outputs": [
+    {
+     "data": {
+      "text/plain": [
+       "23"
+      ]
+     },
+     "execution_count": 8,
+     "metadata": {},
+     "output_type": "execute_result"
+    }
+   ],
+   "source": [
+    "len(docs_all)"
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3 (ipykernel)",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 3
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython3",
+   "version": "3.9.16"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}