More JavaDoc improvements.

By: EvilSeph <evilseph@unaligned.org>

paper-api/src/main/java/org/bukkit/event/server/PluginDisableEvent.java

@@ -2,6 +2,9 @@ package org.bukkit.event.server;
 
 import org.bukkit.plugin.Plugin;
 
+/**
+ * Called when a plugin is disabled.
+ */
 public class PluginDisableEvent extends PluginEvent {
     public PluginDisableEvent(Plugin plugin) {
         super(Type.PLUGIN_DISABLE, plugin);

paper-api/src/main/java/org/bukkit/event/server/PluginEnableEvent.java

@@ -2,6 +2,9 @@ package org.bukkit.event.server;
 
 import org.bukkit.plugin.Plugin;
 
+/**
+ * Called when a plugin is enabled.
+ */
 public class PluginEnableEvent extends PluginEvent {
     public PluginEnableEvent(Plugin plugin) {
         super(Type.PLUGIN_ENABLE, plugin);

paper-api/src/main/java/org/bukkit/event/server/PluginEvent.java

@@ -3,7 +3,7 @@ package org.bukkit.event.server;
 import org.bukkit.plugin.Plugin;
 
 /**
- * Used for plugin loaded and unloaded events
+ * Used for plugin enable and disable events
  */
 public class PluginEvent extends ServerEvent {
     private final Plugin plugin;