Added/updated snippets for docs (#2318)

docs/doc_examples/080c34d8151d02b760571e3a2899fa97.asciidoc

@@ -0,0 +1,27 @@
+// 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.create({
+  index: "test",
+  settings: {
+    analysis: {
+      filter: {
+        email: {
+          type: "pattern_capture",
+          preserve_original: true,
+          patterns: ["([^@]+)", "(\\p{L}+)", "(\\d+)", "@(.+)"],
+        },
+      },
+      analyzer: {
+        email: {
+          tokenizer: "uax_url_email",
+          filter: ["email", "lowercase", "unique"],
+        },
+      },
+    },
+  },
+});
+console.log(response);
+----