render Markdown and support link navigation in KDoc comments

idea/testData/editor/quickDoc/OnMethodUsage.kt

@@ -1,5 +1,5 @@
 /**
- Some documentation
+Some documentation
 
  * @param a Some int
  * @param b String
@@ -12,4 +12,6 @@ fun test() {
     <caret>testMethod(1, "value")
 }
 
-// INFO: <b>internal</b> <b>fun</b> testMethod(a: Int, b: String): Unit<br/><p>Some documentation<br/><br/><dl><dt><b>Parameters:</b></dt><dd><code>a</code> - Some int</dd><dd><code>b</code> - String</dd></dl></p>
+//INFO: <b>internal</b> <b>fun</b> testMethod(a: Int, b: String): Unit<br/><p>Some documentation
+//INFO: <dl><dt><b>Parameters:</b></dt><dd><code>a</code> - Some int</dd><dd><code>b</code> - String</dd></dl>
+//INFO: </p>