Fix links in doc comments

Author: makenowjust

modules/recheck-core/shared/src/main/scala/codes/quine/labs/recheck/diagnostics/AttackPattern.scala

@@ -36,7 +36,7 @@ final case class AttackPattern(pumps: Seq[(UString, UString, Int)], suffix: UStr
     copy(n = n)
   }
 
-  /** Returns the [[UString]]] represented by this. */
+  /** Returns the `UString` represented by this. */
   def asUString: UString = {
     val str = new StringBuilder
 

modules/recheck-core/shared/src/main/scala/codes/quine/labs/recheck/fuzz/FString.scala

@@ -27,7 +27,7 @@ final case class FString(n: Int, seq: IndexedSeq[FChar]) {
   /** A sum of size of each fixed parts in this string. */
   def fixedSize: Int = size - seq.collect { case Repeat(_, _) => 1 }.sum - repeatSize
 
-  /** Counts [[Repeat]] characters in this string. */
+  /** Counts [[FString.Repeat]] characters in this string. */
   def countRepeat: Int = seq.count(_.isInstanceOf[Repeat])
 
   /** Gets the `idx`-th character. */

modules/recheck-core/shared/src/main/scala/codes/quine/labs/recheck/util/TryUtil.scala

@@ -5,7 +5,7 @@ import scala.util.Failure
 import scala.util.Success
 import scala.util.Try
 
-/** Utilities for [[scala.util.Try]]. */
+/** Utilities for `Try`. */
 object TryUtil {
 
   /** Applies sequence values to a function and collects the results. */