Refactor Help pages

I split the help pages in 2

content/3.defense-systems/0.index.md

@@ -2,12 +2,15 @@
 title: List of defense systems
 layout: article-no-toc
 relevantAbstracts:
-    - doi: 10.1101/2021.09.02.458658
+    - doi: 10.1038/s41467-022-30269-9
+    - doi: 10.1038/s41579-023-00934-x
 ---
 
 # List of defense systems
 
-The knowledge of anti-phage defense systems is ever expanding. The spectacular increase of the number of known systems in the past years suggests that many of them are still to be discovered. As of april 2022, 63 defense systems have been described.
+The knowledge of anti-phage defense systems is ever expanding. The spectacular increase of the number of known systems in the past years suggests that many of them are still to be discovered. As of april 2022, 63 defense systems have been described. To our knowledge, there are currently in the following table, 151 systems. 
+
+This table summarizes some info for each systems (that can be search in the ***Search...*** field below), and contains link toward corresponding wiki page.