Update CONTRIBUTING.md (GeyserMC#1787)

* Update CONTRIBUTING.md

* Update CONTRIBUTING.md

Ok that works to but i meant for that to mean 'put all your annotation stuff here' obviously it wont compile, but this works too

Co-authored-by: theminecoder <[email protected]>

Co-authored-by: YHDiamond <[email protected]>
Co-authored-by: theminecoder <[email protected]>

CONTRIBUTING.md

@@ -11,29 +11,36 @@ Thank for for considering a contribution! Generally, Geyser welcomes PRs from ev
 We have some general style guides that should be applied throughout the code:
 
 ```java
-
-private static final AIR_ITEM = 0; // Static item names should be capitalized
-
-public Int2IntMap items = new Int2IntOpenHashMap(); // Use the interface as the class type but initialize with the implementation.
-
-public int nameWithMultipleWords = 0;
-
-/**
-* Javadoc comment to explain what a function does.
-*/
-public void applyStuff() {
-	if (condition) {
-		// Do stuff.
-	} else if (anotherCondition) {
-		// Do something else.
-	}
-
-	switch (value) {
-		case 0:
-			break;
-		case 1:
-			break:
-	}
+public class LongClassName {
+    private static final int AIR_ITEM = 0; // Static item names should be capitalized
+
+    public Int2IntMap items = new Int2IntOpenHashMap(); // Use the interface as the class type but initialize with the implementation.
+
+    public int nameWithMultipleWords = 0;
+
+    /**
+    * Javadoc comment to explain what a function does.
+    */
+    @RandomAnnotation(stuff = true, moreStuff = "might exist")
+    public void applyStuff() {
+        Variable variable = new Variable();
+        Variable otherVariable = new Variable();
+
+        if (condition) {
+	        // Do stuff.
+        } else if (anotherCondition) {
+	    	// Do something else.
+        }
+
+        switch (value) {
+            case 0:
+                stuff();
+                break;
+            case 1:
+                differentStuff();
+                break;
+        }
+    }
 }
 ```