Fix inaccurate comments about how targetFlags work (#106)

The following is not correct:
```
* If specified, `launchdarkly-react-client-sdk` will only request and listen to these flags.
```

It should instead say:
```
* If specified, `launchdarkly-react-client-sdk` will only listen for changes to these flags.
```

Author: yusinto

src/initLDClient.ts

@@ -15,7 +15,7 @@ const wrapperOptions: LDOptions = {
  * @param clientSideID Your project and environment specific client side ID
  * @param context A LaunchDarkly context object
  * @param options LaunchDarkly initialization options
- * @param targetFlags If specified, `launchdarkly-react-client-sdk` will only request and listen to these flags.
+ * @param targetFlags If specified, `launchdarkly-react-client-sdk` will only listen for changes to these flags.
  * Flag keys must be in their original form as known to LaunchDarkly rather than in their camel-cased form.
  *
  * @see `ProviderConfig` for more details about the parameters

src/types.ts

@@ -78,7 +78,7 @@ export interface ProviderConfig {
   reactOptions?: LDReactOptions;
 
   /**
-   * If specified, `launchdarkly-react-client-sdk` will only request and listen to these flags.
+   * If specified, `launchdarkly-react-client-sdk` will only listen for changes to these flags.
    * Otherwise, all flags will be requested and listened to.
    * Flag keys must be in their original form as known to LaunchDarkly rather than in their camel-cased form.
    */

src/utils.ts

@@ -54,7 +54,7 @@ export const getFlattenedFlagsFromChangeset = (
  * Retrieves flag values.
  *
  * @param ldClient LaunchDarkly client
- * @param targetFlags If specified, `launchdarkly-react-client-sdk` will only request and listen to these flags.
+ * @param targetFlags If specified, `launchdarkly-react-client-sdk` will only listen for changes to these flags.
  * Flag keys must be in their original form as known to LaunchDarkly rather than in their camel-cased form.
  *
  * @returns an `LDFlagSet` with the current flag values from LaunchDarkly filtered by `targetFlags`.