Restored ad skipper as mode (adamlui/youtube-classic#273) ↞ [auto-sync from https://github.com/adamlui/youtube-classic]

Author: kudo-sync-bot

youtube-classic/docs/README.md

@@ -60,6 +60,7 @@
   <li><b>Hides sneaky recommendations</b> from search for more accurate results</li><br>
   <li><b>Reduces excessive animations</b> for faster navigation thus enjoyment of videos</li><br>
   <li><b>Prevents idling</b> to keep tabs from falling asleep for infinite auto-play</li><br>
+  <li><b>Skips video ads</b> so you can watch videos faster</li><br>
   <li><b>Blocks thumbnail ads</b> for less clutter when browsing videos
     <p><i>&nbsp;Before:</i><br><br>
       <img width=535 height="auto" src="https://cdn.jsdelivr.net/gh/adamlui/youtube-classic@1c92f98/assets/images/screenshots/ad-block/before.png">

youtube-classic/docs/zh-cn/README.md

@@ -62,6 +62,7 @@
   <li><b>屏蔽搜索结果中的隐匿推荐</b>，从而呈现更精准的搜索结果</li><br>
   <li><b>精简冗余动画效果</b>，加快页面导航速度，助您更流畅地欣赏视频</li><br>
   <li><b>防止页面进入空闲休眠状态</b>，确保标签页持续活跃，实现无限自动播放</li><br>
+  <li><b>跳过视频广告</b>，让您更快地观看视频</li><br>
   <li><b>拦截缩略图广告</b>，让您在浏览视频时界面更加整洁清爽
     <p><i>&nbsp;前：</i><br>
       <img width=535 height="auto" src="https://cdn.jsdelivr.net/gh/adamlui/youtube-classic@1c92f98/assets/images/screenshots/ad-block/before.png">

youtube-classic/docs/zh-tw/README.md

@@ -62,6 +62,7 @@
   <li><b>遮蔽搜尋結果中的隱匿推薦</b>，從而呈現更精準的搜尋結果</li><br>
   <li><b>精簡冗餘動畫效果</b>，加快頁面導覽速度，助您更流暢地欣賞影片</li><br>
   <li><b>防止頁面進入空閒休眠狀態</b>，確保分頁持續活躍，實現無限自動播放</li><br>
+  <li><b>跳過影片廣告</b>，讓您更快觀看影片</li><br>
   <li><b>攔截縮圖廣告</b>，讓您在瀏覽影片時介面更加整潔清爽
     <p><i>&nbsp;前：</i><br>
       <img width=535 height="auto" src="https://cdn.jsdelivr.net/gh/adamlui/youtube-classic@1c92f98/assets/images/screenshots/ad-block/before.png">