Update documentation to exclude static methods from @OverrideOnly

src/commonMain/kotlin/org/jetbrains/annotations/ApiStatus.kt

@@ -200,7 +200,7 @@ expect class ApiStatus private constructor() {
      *
      * Indicates that the annotated method is part of SPI (Service Provider Interface), which is intended to be
      * **only implemented or overridden** but not called by clients of the declaring library.
-     * If a class or interface is marked with this annotation it means that all its methods can be only overridden.
+     * If a class or interface is marked with this annotation it means that all its instance methods can be only overridden.
      *
      *
      * Although there is a standard mechanism of `protected` methods, it is not applicable to interface's methods.

src/jvmMain/java/org/jetbrains/annotations/ApiStatus.java

@@ -149,7 +149,7 @@ private ApiStatus() {
   /**
    * <p>Indicates that the annotated method is part of SPI (Service Provider Interface), which is intended to be
    * <strong>only implemented or overridden</strong> but not called by clients of the declaring library.
-   * If a class or interface is marked with this annotation it means that all its methods can be only overridden.</p>
+   * If a class or interface is marked with this annotation it means that all its instance methods can be only overridden.</p>
    *
    * <p>Although there is a standard mechanism of {@code protected} methods, it is not applicable to interface's methods.
    * Also, API method may be made {@code public} to allow calls only from different parts of the declaring library but not outside it.</p>

src/nonJvmMain/kotlin/org/jetbrains/annotations/ApiStatus.kt

@@ -200,7 +200,7 @@ actual class ApiStatus private actual constructor() {
      *
      * Indicates that the annotated method is part of SPI (Service Provider Interface), which is intended to be
      * **only implemented or overridden** but not called by clients of the declaring library.
-     * If a class or interface is marked with this annotation it means that all its methods can be only overridden.
+     * If a class or interface is marked with this annotation it means that all its instance methods can be only overridden.
      *
      *
      * Although there is a standard mechanism of `protected` methods, it is not applicable to interface's methods.