feat: ARTICLE_URL 변수를 수정하다

- 마지막에 `/`가 있어서 rss.xml에서 문제가 있는것같아서 수정함.

Author: ujuc

pelicanconf.py

@@ -30,7 +30,7 @@
 AUTHOR_FEED_RSS = None
 
 ARTICLE_PATHS = ["blog"]
-ARTICLE_URL = "{date:%Y}/{date:%m}/{date:%d}/{slug}/"
+ARTICLE_URL = "{date:%Y}/{date:%m}/{date:%d}/{slug}"
 ARTICLE_SAVE_AS = "{date:%Y}/{date:%m}/{date:%d}/{slug}/index.html"
 
 PAGE_PATHS = ["pages"]