Fix ROS2 code link (#11239)

Co-authored-by: Gábor Gyebnár <[email protected]>

Author: Wumpf

docs/content/reference/mcap/message-formats.md

@@ -14,7 +14,7 @@ The `ros2msg` layer provides automatic visualization for common ROS2 message typ
 - **`geometry_msgs`**
 - **`builtin_interfaces`**
 
-We are continually adding support for more standard ROS2 message types. For the complete list of currently supported messages, see the [ROS2 message parsers in our codebase](../../../../crates/utils/re_mcap/src/layers/ros2.rs).
+We are continually adding support for more standard ROS2 message types. For the complete list of currently supported messages, see the [ROS2 message parsers in our codebase](https://github.com/rerun-io/rerun/blob/latest/crates/utils/re_mcap/src/layers/ros2.rs).
 
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