Clarify the behavior of @inheritDoc

Additional info copied from https://api-extractor.com/pages/tsdoc/tag_inheritdoc/

tsdoc/src/details/StandardTags.ts

@@ -124,6 +124,18 @@ export class StandardTags {
    * to the other item, which may be an unrelated class, or even an import from a
    * separate NPM package.
    *
+   * What gets copied
+   * 
+   * The @inheritDoc tag does not copy the entire comment body. Only the following 
+   * components are copied:
+   * - summary section
+   * - @remarks block
+   * - @params blocks
+   * - @typeParam blocks
+   * - @returns block
+   * Other tags such as @defaultValue or @example are not copied, and need to be 
+   * explicitly included after the @inheritDoc tag.
+   *
    * TODO: The notation for API item references is still being standardized.  See this issue:
    * https://github.com/microsoft/tsdoc/issues/9
    */