readme update

Author: CodeManDev

README.md

@@ -1,20 +1,25 @@
 # SMTC4J
 Simple Java Library for getting information about the current playback from the windows system media transport controls (SMTC).
 
+## Requirements
+- Java 21 or later
+- Windows 10 or later
+- GSON library for JSON parsing
+
 ## Usage
 Load the native library
 ```java
 SMTC4J.load();
 ```
 
-Start the automatic update thread
+## Start the automatic update scheduler
 
 ```java
 long updateIntervalMillis = 500; // e.g., update every 500ms
-SMTC4J.startUpdateThread(updateIntervalMillis);
+SMTC4J.startUpdateScheduler(updateIntervalMillis);
 ```
 
-Access the cached information
+## Access the cached information
 
 Media info (title, artist, album, duration, cover, source app):
 ```java
@@ -28,4 +33,26 @@ Playback state (play/pause/stop code, position in seconds):
 PlaybackState playbackState = SMTC4J.getCachedPlaybackState();
 System.out.println("State code: " + playbackState.getStateCode());
 System.out.println("Position: " + playbackState.getPosition());
-```
+```
+
+## Press media keys (PLAY, PAUSE, STOP, NEXT, PREVIOUS):
+
+Using the scheduler:
+
+```java
+SMTC4J.scheduleKeyPress(MediaKey.PLAY);
+```
+
+Or directly:
+
+```java
+SMTC4J.pressKey(MediaKey.NEXT);
+```
+
+
+# Important Notes
+This only works on Windows 10 and later versions, as it relies on the Windows SMTC API. <br>
+The the jars in the releases are built for x64 architecture. <br>
+If you you really need x86 support, you can build the native library from source using the provided C++ code. <br>
+If you try to call the native methods on a thread on which COM is already initialized, it may lead to crashes. <br>
+To avoid this, you should use the provided scheduler methods which handle threading and COM initialization internally.