fix: non existing user configuration

feat:  update readme

README.md

@@ -20,8 +20,6 @@ Settings are under: `View3D -> Sidebar -> Multiuser`
 
 #### 1. User
 
-_All user-related infos fields._
-
 ![settings](medias/user.png)
 
 - **name**: username.
@@ -29,8 +27,6 @@ _All user-related infos fields._
 
 #### 2. Network
 
-_Session-related managment tools_
-
 :warning: If you host a session over internet, special network configuration is needed :warning:
  
 | Host                                         | Join                           |

__init__.py

@@ -216,6 +216,9 @@ class SessionProps(bpy.types.PropertyGroup):
     def save(self,context):
         config = environment.load_config()
 
+        if "supported_types" not in config:
+            config = generate_supported_types()
+
         config["username"] = self.username
         config["ip"] = self.ip
         config["port"] = self.port