Prepare 1.1.0 release (#1274)

* Update bucket_sort.c

* Fix the comments in quick_sort.c

* Update the announce badge

* Sync zh and zh-hant versions

* Update contributors list.

* Sync zh and zh-hant versions.

* Sync zh and zh-hant versions.

* Update the contributors list

* Update the version number

zh-hant/codes/swift/chapter_dynamic_programming/climbing_stairs_backtrack.swift

@@ -16,7 +16,9 @@ func backtrack(choices: [Int], state: Int, n: Int, res: inout [Int]) {
         if state + choice > n {
             continue
         }
+        // 嘗試：做出選擇，更新狀態
         backtrack(choices: choices, state: state + choice, n: n, res: &res)
+        // 回退
     }
 }