Update footer.html

Author: YURLAK

_includes/footer.html

@@ -34,6 +34,6 @@
 
   </div>
 
-  <p align="center">©{{ site.minima.copyright_time }} by <a href="https://www.github.com/{{ site.author.name }}">{{ site.author.name }}</a>,using <a href="https://creativecommons.org/licenses/by-sa/4.0/deed.zh">CC BY-SA 4.0(创意共享4.0许可证)</p>
+  <p align="center">©{{ site.minima.copyright_time }} by <a href="https://www.github.com/{{ site.author.name }}">{{ site.author.name }}</a>,using <a href="https://creativecommons.org/licenses/by-sa/4.0/deed.zh">CC BY-SA 4.0(创意共享4.0许可证)。</p>
 
 </footer>