fix comment

hutool-extra/src/main/java/cn/hutool/extra/emoji/package-info.java

@@ -1,5 +1,5 @@
 /**
- * 基于<a href=“https://github.com/vdurmont/emoji-java”>emoji-java</a>的Emoji表情工具类
+ * 基于https://github.com/vdurmont/emoji-java的Emoji表情工具类
  * 
  * @author looly
  *

hutool-extra/src/main/java/cn/hutool/extra/servlet/multipart/MultipartRequestInputStream.java

@@ -36,6 +36,7 @@ public class MultipartRequestInputStream extends BufferedInputStream {
 	 * 跳过指定位数的 bytes.
 	 * 
 	 * @param i 跳过的byte数
+	 * @throws IOException IO异常
 	 */
 	public void skipBytes(int i) throws IOException {
 		long len = super.skip(i);

hutool-extra/src/main/java/cn/hutool/extra/servlet/multipart/UploadFile.java

@@ -83,6 +83,7 @@ public class UploadFile {
 	 *
 	 * @param destination 目标文件
 	 * @return 目标文件
+	 * @throws IOException IO异常
 	 */
 	public File write(File destination) throws IOException {
 		assertValid();