Added/updated snippets for docs (#2318)

docs/doc_examples/fe8c3e2632f5057bfbd1898a8fe4d0d2.asciidoc

@@ -0,0 +1,36 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response = await client.searchApplication.put({
+  name: "my_search_application",
+  search_application: {
+    indices: ["index1", "index2"],
+    template: {
+      script: {
+        lang: "mustache",
+        source:
+          '\n      {\n        "query": {\n          "multi_match": {\n            "query": "{{query_string}}",\n            "fields": [{{#text_fields}}"{{name}}^{{boost}}",{{/text_fields}}]\n          }\n        },\n        "explain": "{{explain}}",\n        "from": "{{from}}",\n        "size": "{{size}}"\n      }\n      ',
+        params: {
+          query_string: "*",
+          text_fields: [
+            {
+              name: "title",
+              boost: 10,
+            },
+            {
+              name: "description",
+              boost: 5,
+            },
+          ],
+          explain: false,
+          from: 0,
+          size: 10,
+        },
+      },
+    },
+  },
+});
+console.log(response);
+----