fix README.md

Author: fishercoder1534

README.md

@@ -9,7 +9,7 @@ _If you like this project, please leave me a star._ ★
 | #    |      Title     | Solutions                                                                                                                                | Video                                                                         | Difficulty  | Tag                  
 |------|----------------|------------------------------------------------------------------------------------------------------------------------------------------|-------------------------------------------------------------------------------|-------------|-------------
 | 2288 |[Apply Discount to Prices](https://leetcode.com/problems/apply-discount-to-prices/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2288.java)                                                                     || Medium                                                                        ||
-| 2287 |[Rearrange Characters to Make Target String](https://leetcode.com/problems/rearrange-characters-to-make-target-string/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2288.java)                                                                     || Eaa                                                                           ||
+| 2287 |[Rearrange Characters to Make Target String](https://leetcode.com/problems/rearrange-characters-to-make-target-string/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2288.java)                                                                     || Easy                                                                          ||
 | 2284 |[Sender With Largest Word Count](https://leetcode.com/problems/sender-with-largest-word-count/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2284.java)                                                                     || Medium                                                                        ||
 | 2283 |[Check if Number Has Equal Digit Count and Digit Value](https://leetcode.com/problems/check-if-number-has-equal-digit-count-and-digit-value/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2283.java)                                                                     || Easy                                                                          ||
 | 2279 |[Maximum Bags With Full Capacity of Rocks](https://leetcode.com/problems/maximum-bags-with-full-capacity-of-rocks/)| [Java](../master/src/main/java/com/fishercoder/solutions/_2279.java)                                                                     || Medium                                                                        ||