fix env

Author: mahirlabibdihan

README.md

@@ -158,13 +158,13 @@ Before running WebArena experiments, you need to set up the WebArena environment
   ```bash
   PUBLIC_HOSTNAME=<YOUR_SERVER_DOMAIN_HERE>
 
-  WA_SHOPPING=http://${PUBLIC_HOSTNAME}:7770
-  WA_SHOPPING_ADMIN=http://${PUBLIC_HOSTNAME}:7780/admin
-  WA_REDDIT=http://${PUBLIC_HOSTNAME}:9999
-  WA_GITLAB=http://${PUBLIC_HOSTNAME}:8023
-  WA_GITLAB_IP=${PUBLIC_HOSTNAME}
-  WA_WIKIPEDIA=http://${PUBLIC_HOSTNAME}:8888/wikipedia_en_all_maxi_2022-05/A/User:The_other_Kiwix_guy/Landing
-  WA_MAP=http://${PUBLIC_HOSTNAME}:3000
+  export WA_SHOPPING=http://${PUBLIC_HOSTNAME}:7770
+  export WA_SHOPPING_ADMIN=http://${PUBLIC_HOSTNAME}:7780/admin
+  export WA_REDDIT=http://${PUBLIC_HOSTNAME}:9999
+  export WA_GITLAB=http://${PUBLIC_HOSTNAME}:8023
+  export WA_GITLAB_IP=${PUBLIC_HOSTNAME}
+  export WA_WIKIPEDIA=http://${PUBLIC_HOSTNAME}:8888/wikipedia_en_all_maxi_2022-05/A/User:The_other_Kiwix_guy/Landing
+  export WA_MAP=http://${PUBLIC_HOSTNAME}:3000
   ```
 
 then run the following command.