Add avs and trigger

Adding prewriting pages on Avs and Phage triggers

.gitlab/merge_request_templates/new-system-reviewer-guide.md

@@ -23,13 +23,13 @@ relevantAbstracts:
 ---
 ```
   2. The following paragraphs
-    - Description
-    - Molecular mechanisms
-    - Example of genomic structure
-    - Distribution of the system among prokaryotes
-    - Structure
-    - Experimental validation
-    - References with the following syntax : `:ref{doi=my-doi}`.
+      - Description
+      - Molecular mechanisms
+      - Example of genomic structure
+      - Distribution of the system among prokaryotes
+      - Structure
+      - Experimental validation
+      - References with the following syntax : `:ref{doi=my-doi}`.
 
 - [ ] The header contains all the required information. The information provided in the header is required to display the list of defense systems.
   - The mandatory fields are :