fix migrations documents (#17679)

Co-authored-by: techknowlogick <techknowlogick@gitea.io>

docs/content/doc/developers/migrations.en-us.md

@@ -20,7 +20,7 @@ repository data from other git host platforms to Gitea or, in the future, migrat
 git host platforms.  
 Currently, migrations from Github, Gitlab, and other Gitea instances are implemented.
 
-First of all, Gitea defines some standard objects in packages [modules/migrations/base](https://github.com/go-gitea/gitea/tree/main/modules/migrations/base).  
+First of all, Gitea defines some standard objects in packages [modules/migration](https://github.com/go-gitea/gitea/tree/main/modules/migration).  
 They are `Repository`, `Milestone`, `Release`, `ReleaseAsset`, `Label`, `Issue`, `Comment`, `PullRequest`, `Reaction`, `Review`, `ReviewComment`.
 
 ## Downloader Interfaces
@@ -31,11 +31,11 @@ To migrate from a new git host platform, there are two steps to be updated.
 - You should implement a `DownloaderFactory` which will be used to detect if the URL matches and create the above `Downloader`.
    - You'll need to register the `DownloaderFactory` via `RegisterDownloaderFactory` on `init()`.
 
-You can find these interfaces in [downloader.go](https://github.com/go-gitea/gitea/blob/main/modules/migrations/base/downloader.go).
+You can find these interfaces in [downloader.go](https://github.com/go-gitea/gitea/blob/main/modules/migration/downloader.go).
 
 ## Uploader Interface
 
 Currently, only a `GiteaLocalUploader` is implemented, so we only save downloaded
 data via this `Uploader` to the local Gitea instance. Other uploaders are not supported at this time.
 
-You can find these interfaces in [uploader.go](https://github.com/go-gitea/gitea/blob/main/modules/migrations/base/uploader.go).
+You can find these interfaces in [uploader.go](https://github.com/go-gitea/gitea/blob/main/modules/migration/uploader.go).

docs/content/doc/developers/migrations.zh-tw.md

@@ -18,7 +18,7 @@ menu:
 完整的遷移從 Gitea 1.9.0 開始提供。它定義了兩個介面用來從其它 Git 託管平臺遷移儲存庫資料到 Gitea，未來或許會提供遷移到其它 git 託管平臺。
 目前已實作了從 Github, Gitlab 和其它 Gitea 遷移資料。
 
-Gitea 定義了一些基本物件於套件 [modules/migrations/base](https://github.com/go-gitea/gitea/tree/master/modules/migrations/base)。  
+Gitea 定義了一些基本物件於套件 [modules/migration](https://github.com/go-gitea/gitea/tree/master/modules/migration)。  
 分別是 `Repository`, `Milestone`, `Release`, `ReleaseAsset`, `Label`, `Issue`, `Comment`, `PullRequest`, `Reaction`, `Review`, `ReviewComment`。
 
 ## Downloader 介面
@@ -29,11 +29,11 @@ Gitea 定義了一些基本物件於套件 [modules/migrations/base](https://git
 - 您必須實作一個 `DownloaderFactory`，它用來偵測 URL 是否符合並建立上述的 `Downloader`。
   - 您需要在 `init()` 透過 `RegisterDownloaderFactory` 來註冊 `DownloaderFactory`。
 
-您可以在 [downloader.go](https://github.com/go-gitea/gitea/blob/master/modules/migrations/base/downloader.go) 中找到這些介面。
+您可以在 [downloader.go](https://github.com/go-gitea/gitea/blob/master/modules/migration/downloader.go) 中找到這些介面。
 
 ## Uploader 介面
 
 目前只有 `GiteaLocalUploader` 被實作出來，所以我們只能通過 `Uploader` 儲存已下載的資料到本地的 Gitea 實例。
 目前尚未支援其它 Uploader。
 
-您可以在 [uploader.go](https://github.com/go-gitea/gitea/blob/master/modules/migrations/base/uploader.go) 中找到這些介面。
+您可以在 [uploader.go](https://github.com/go-gitea/gitea/blob/master/modules/migration/uploader.go) 中找到這些介面。