Added new docs examples (#1101)

* Added new docs examples

* Updated enabled files list

docs/doc_examples/1b8655e6ba99fe39933c6eafe78728b7.asciidoc

@@ -0,0 +1,38 @@
+// This file is autogenerated, DO NOT EDIT
+// Use `node scripts/generate-docs-examples.js` to generate the docs examples
+
+[source, js]
+----
+const response0 = await client.reindex({
+  body: {
+    source: {
+      index: 'twitter',
+      slice: {
+        id: 0,
+        max: 2
+      }
+    },
+    dest: {
+      index: 'new_twitter'
+    }
+  }
+})
+console.log(response0)
+
+const response1 = await client.reindex({
+  body: {
+    source: {
+      index: 'twitter',
+      slice: {
+        id: 1,
+        max: 2
+      }
+    },
+    dest: {
+      index: 'new_twitter'
+    }
+  }
+})
+console.log(response1)
+----
+