update README.md

README.md

@@ -6,5 +6,5 @@ MusesArt is an Android demonstration application for paper "Block Shuffle: A Met
 | Home Page                                                    | Edit Page                                                    |
 | ------------------------------------------------------------ | ------------------------------------------------------------ |
 | ![home](ui/ui01.jpg)                                         | ![home](ui/ui02.jpg)                                         |
-| This is the home page. The left bottom is "camera", and the right bottom is "album". You can enter the edit page from these two different bottom. | This is the edit page. You can apply a filter to stylize your photo. In the upper right corner you can select the resolution. "低", "中", "高" mean $1000\times 1000$, $2000\times 2000$, and $3000 \times 3000$. |
+| This is the home page. The left bottom is "camera", and the right bottom is "album". You can enter the edit page from these two different bottom. | This is the edit page. You can apply a filter to stylize your photo. In the upper right corner you can select the resolution. "低", "中", "高" mean 1000×1000, 2000×2000, and 3000×3000. |