fix bibliography example and test files

citations.bib

@@ -3,7 +3,7 @@
 	title = "Q117858460 --- Wikidata{,} ",
 	year = "2025",
 	url = "https://www.wikidata.org/w/index.php?title=Q117858460&oldid=2404700455",
-	note = "[Online; cit. 24-Zář-2025]"
+	urldate = {2025-09-24},
 }
 
 @misc{ bibtex,
@@ -11,5 +11,5 @@
 	title = "BibTeX --- {Wikipedia}{,} The Free Encyclopedia",
 	year = "2025",
 	url = "https://en.wikipedia.org/w/index.php?title=BibTeX&oldid=1309039867",
-	note = "[Online; cit 24-Zář-2025]"
+	urldate = {2025-09-24},
 }

tests/citations.bib

@@ -15,8 +15,7 @@
 @misc{csl,
   title = {Citation Style Language},
   year = {2025},
-  medium = {online},
-  accessed = {2025-06-10},
+  urldate = {2025-06-10},
   URL = {https://citationstyles.org/},
 }
 
@@ -24,8 +23,7 @@
   journal = {Blog | Linux Foundation},
   title = {Classic SysAdmin: Vim 101: A Beginner’s Guide to Vim},
   year = {2025},
-  medium = {online},
-  accessed = {2025-06-10},
+  urldate = {2025-06-10},
   URL = {https://www.linuxfoundation.org/blog/blog/classic-sysadmin-vim-101-a-beginners-guide-to-vim},
 }