[DOCS] Addresses feedback.

README.md

@@ -12,13 +12,13 @@ The `docs/design` folder contains records of the major decisions in the design o
 - Nested objects can be constructed with builder lambdas, allowing for clean and expressive DSL-like code.
 - Optional values are represented as `null` with `@Nullable` annotations instead of the newer  `Optional`, the Java ecosystem being still very null-based.
 
+## Installation
+
 **[Download the latest version of Elasticsearch](https://www.elastic.co/downloads/elasticsearch)**
 or
 **[sign-up](https://cloud.elastic.co/registration?elektra=en-ess-sign-up-page)**
 **for a free trial of Elastic Cloud**.
 
-## Installation
-
 Refer to the [Installation section](https://www.elastic.co/guide/en/elasticsearch/client/java-api-client/current/getting-started-java.html#_installation)
 of the getting started documentation.