Added/updated snippets for docs (#2318)

docs/doc_examples/a5e793d82a4455cf4105dac82a156617.asciidoc

@@ -0,0 +1,19 @@
+// 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.indices.validateQuery({
+  index: "my-index-000001",
+  rewrite: "true",
+  query: {
+    more_like_this: {
+      like: {
+        _id: "2",
+      },
+      boost_terms: 1,
+    },
+  },
+});
+console.log(response);
+----