Improve clarity in JSON loader documentation

build/oss/javascript/integrations/document_loaders/file_loaders/json.mdx

@@ -6,14 +6,18 @@ The JSON loader use [JSON pointer](https://github.com/janl/node-jsonpointer) to
 
 ### No JSON pointer example
 
-The most simple way of using it, is to specify no JSON pointer.
+The most simple way of using it is to specify no JSON pointer.
 The loader will load all strings it finds in the JSON object.
 
 Example JSON file:
 
 ```json
 {
-  "texts": ["This is a sentence.", "This is another sentence."]
+  "texts": ["This is a sentence.", "This is another sentence."],
+  "nestedTexts": {
+    "one": "This is a sentence nested in an object.",
+    "two": "This is another sentence nested in an object."
+  }
 }
 ```
 
@@ -28,28 +32,28 @@ const docs = await loader.load();
 /*
 [
   Document {
-    "metadata": {
-      "blobType": "application/json",
-      "line": 1,
-      "source": "blob",
-    },
-    "pageContent": "This is a sentence.",
+    pageContent: 'This is a sentence.',
+    metadata: { source: 'example.json', line: 1 }
+  },
+  Document {
+    pageContent: 'This is another sentence.',
+    metadata: { source: 'example.json', line: 2 }
   },
   Document {
-    "metadata": {
-      "blobType": "application/json",
-      "line": 2,
-      "source": "blob",
-    },
-    "pageContent": "This is another sentence.",
+    pageContent: 'This is a sentence nested in an object.',
+    metadata: { source: 'example.json', line: 3 }
   },
+  Document {
+    pageContent: 'This is another sentence nested in an object.',
+    metadata: { source: 'example.json', line: 4 }
+  }
 ]
 */
 ```
 
 ### Using JSON pointer example
 
-You can do a more advanced scenario by choosing which keys in your JSON object you want to extract string from.
+You can choose which keys in your JSON object you want to extract strings from.
 
 In this example, we want to only extract information from "from" and "surname" entries.
 
@@ -86,21 +90,16 @@ const docs = await loader.load();
 /*
 [
   Document {
-    "metadata": {
-      "blobType": "application/json",
-      "line": 1,
-      "source": "blob",
-    },
-    "pageContent": "BD 2023 SUMMER",
+    pageContent: 'LinkedIn Job',
+    metadata: { source: 'example.json', line: 1 }
   },
   Document {
-    "metadata": {
-      "blobType": "application/json",
-      "line": 2,
-      "source": "blob",
-    },
-    "pageContent": "LinkedIn Job",
+    pageContent: 'LinkedIn Job2',
+    metadata: { source: 'example.json', line: 2 }
   },
-  ...
+  Document {
+    pageContent: 'bob',
+    metadata: { source: 'example.json', line: 3 }
+  }
 ]
 ```