adding pro/con solution 2

Signed-off-by: Thomas Poignant <[email protected]>

website/src/pages/specification/20241027-flagsets.md

@@ -144,6 +144,7 @@ authorizedKeys:
 - It is easy to give ownership of a flag set to a team, by giving them access to the file.
 
 **CON**
+- The flag set configuration is at the same place as the flag configuration, so it is possible to edit the flag set name directly inside the file _(risk of overriding another flag set)_.
 - If we want the same flag to be part of multiple flag sets, we need to duplicate the flag in multiple files.
 
 ### Solution 2: specify the flag set in the retriever configuration
@@ -190,6 +191,16 @@ authorizedKeys:
   admin:
     - apikey3
 ```
+
+**PRO**
+- It is simple to configure a flag set by putting all the flags at the same place.
+- It is easy to understand which flags are part of a flag set.
+- It is easy to give ownership of a flag set to a team, by giving them access to the file.
+- The flag set name is directly associated to the retriever, so it is not possible to edit it directly inside the file.
+
+**CON**
+- If we want the same flag to be part of multiple flag sets, we need to duplicate the flag in multiple files.
+
 ### Solution 3
 :::note
 Feel free to propose other solutions here.