ci: add comments to the env variables to explain why and when they ar…

…e used

.env.example

@@ -25,10 +25,17 @@ BASESCAN_API_KEY="zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"
 ARBISCAN_API_KEY="zzzzzzzzzzzzzzzzzzzzzzzzzzzzzzzz"
 
 ## Deployment addresses
-# Note that addresses will be also used for testing so ensure they are valid on the network you are running the forking tests on 
+# Note that addresses will be also used for testing so ensure they are valid on the network you are running the forking tests on.
+
+# optional, address if not provided will get it from the latest deployment on the network or from the ens registrar 
+#     defined in the framework if it supports it. In case it is not found will create a new one.
 PLUGIN_REPO_ADDRESS=0x0000000000000000000000000000000000000000
+# not optional, if not provided will not be able to deploy the plugin or run the forking tests.
 PLUGIN_REPO_FACTORY_ADDRESS=0x0000000000000000000000000000000000000000
+# optional, only needed when a latest versions of the plugin are going to be deploy on a new network.
 PLACEHOLDER_SETUP=0x0000000000000000000000000000000000000000
+# not optional, if not provided will not be able to transfer the ownership of the plugin when deploying
+#     the plugin or running the forking tests.
 MANAGEMENT_DAO_ADDRESS=0x0000000000000000000000000000000000000000
 
 ## Subgraph