docs: make synchronousFetchOnInitialisation in option more clear

just to make it more clear in case someone skipped section about Asynchronous/synchronous initialization

README.md

@@ -461,7 +461,7 @@ The `UnleashConfigBuilder` class (created via `UnleashConfig.builder()`) exposes
 | `scheduledExecutor`                        | A custom executor to control timing and running of tasks (such as fetching toggles, sending metrics).                                                                                                                                            | No       | [`UnleashScheduledExecutorImpl`](src/main/java/io/getunleash/util/UnleashScheduledExecutorImpl.java)                 |
 | `sendMetricsInterval`                      | How often (in seconds) the client should send metrics to the Unleash server. Ignored if you disable metrics with the `disableMetrics` method.                                                                                                    | No       | `60`                                                                                                                 |
 | `subscriber`                               | [Register a subscriber to Unleash client events](#subscriber-api).                                                                                                                                                                               | No       | `null`                                                                                                               |
-| `synchronousFetchOnInitialisation`         | Whether the client should fetch toggle configuration synchronously (in a blocking manner).                                                                                                                                                       | No       | `false`                                                                                                              |
+| `synchronousFetchOnInitialisation`         | Whether the client should fetch toggle configuration synchronously (in a blocking manner) on initialisation.                                                                                                                                                       | No       | `false`                                                                                                              |
 | `toggleBootstrapProvider`                  | Add a [bootstrap provider](#bootstrapping) (must implement the `ToggleBootstrapProvider` interface)                                                                                                                                              | No       |                                                                                                                      |
 | `unleashAPI`                               | The URL of the Unleash API.                                                                                                                                                                                                                      | Yes      | `null`                                                                                                               |
 | `unleashContextProvider`                   | An [Unleash context provider used to configure Unleash](#2-via-an-unleashcontextprovider).                                                                                                                                                       | No       | `null`                                                                                                               |