Added/updated snippets for docs (#2318)

docs/doc_examples/2de6885bacb8769b8f22dce253c96b0c.asciidoc

@@ -0,0 +1,24 @@
+// 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.search({
+  query: {
+    intervals: {
+      my_text: {
+        match: {
+          query: "hot porridge",
+          filter: {
+            script: {
+              source:
+                "interval.start > 10 && interval.end < 20 && interval.gaps == 0",
+            },
+          },
+        },
+      },
+    },
+  },
+});
+console.log(response);
+----