correct link in files.

Author: benluo

_zh-cn/overviews/scala3-book/collections-methods.md

@@ -401,6 +401,6 @@ res1: Int = 24
 [interacting]: {% link _zh-cn/overviews/scala3-book/interacting-with-java.md %}
 [lambdas]: {% link _zh-cn/overviews/scala3-book/fun-anonymous-functions.md %}
 [fp-intro]: {% link _zh-cn/overviews/scala3-book/fp-intro.md %}
-[mut-immut-colls]: {% link _zh-cn/overviews/collections-2.13/overview.md %}
-[architecture]: {% link _zh-cn/overviews/core/architecture-of-scala-213-collections.md %}
+[mut-immut-colls]: {% link _overviews/collections-2.13/overview.md %}
+[architecture]: {% link _overviews/core/architecture-of-scala-213-collections.md %}
 

_zh-cn/overviews/scala3-book/concurrency.md

@@ -311,4 +311,4 @@ val res1: concurrent.Future[Int] = Future(Success(4))
 它还讨论了如何将 `for` 表达式转换为 `flatMap` 操作。
 
 
-[futures]: {% link _zh-cn/overviews/core/futures.md %}
+[futures]: {% link _overviews/core/futures.md %}

_zh-cn/overviews/scala3-book/first-look-at-types.md

@@ -268,7 +268,7 @@ val z: Long = y  // Error
 
 [reference]: {{ site.scala3ref }}/overview.html
 [matchable]: {{ site.scala3ref }}/other-new-features/matchable.html
-[interpolation]: {% link _zh-cn/overviews/core/string-interpolation.md %}
+[interpolation]: {% link _overviews/core/string-interpolation.md %}
 [fp]: {% link _zh-cn/overviews/scala3-book/fp-intro.md %}
 [option-api]: https://scala-lang.org/api/3.x/scala/Option.html
 [safe-null]: {{ site.scala3ref }}/experimental/explicit-nulls.html