Migrate config and log directories

Signed-off-by: methylDragon <[email protected]>

Migration.md

@@ -16,7 +16,7 @@ release will remove the deprecated code.
 * Header files under `ignition/...` are deprecated and will be removed in future versions.
   Use `gz/...` instead.
 * Configuration and log files are stored under `$HOME/.gz/sim` instead of
-  `$HOME/.ignition/gazebo`
+  `$HOME/.gz/sim`
 * The following `IGN_GAZEBO_` prefixed environment variables are deprecated and will be removed in future versions.
   Use the `GZ_SIM_` prefixed versions instead!
   * `IGN_GAZEBO_RENDER_ENGINE_PATH` -> `GZ_SIM_RENDER_ENGINE_PATH`
@@ -116,7 +116,7 @@ since pose information is being logged in the `changed_state` topic.
       + `ViewAndle`: Move camera to preset angles
 
 * The `gui.config` and `server.config` files are now located in a versioned
-  folder inside `$HOME/.ignition/gazebo`, i.e. `$HOME/.ignition/gazebo/6/gui.config`.
+  folder inside `$HOME/.gz/sim`, i.e. `$HOME/.gz/sim/6/gui.config`.
 
 * The `Component::Clone` method has been marked `const` to reflect that it
   should not mutate internal component state. Component implementations that