docs(elasticsearch-plugin): Add note on version compatibility (#1616)

packages/elasticsearch-plugin/src/plugin.ts

@@ -64,8 +64,8 @@ function getCustomResolvers(options: ElasticsearchRuntimeOptions) {
  *
  * ## Installation
  *
- * **Requires Elasticsearch v7.0 or higher.**
- *
+ * **Requires Elasticsearch v7.0 < required Elasticsearch version < 7.10 **
+ * Elasticsearch version 7.10.2 will throw error due to incompatibility with elasticsearch-js client. [Check here for more info](https://github.com/elastic/elasticsearch-js/issues/1519)
  * `yarn add \@elastic/elasticsearch \@vendure/elasticsearch-plugin`
  *
  * or