fix link in docs

docs/tracing_ui.md

@@ -51,7 +51,7 @@ The toolbar further features all available navigation and annotation tools for q
 - `Erase (Trace/Brush)`: Removes voxels from a volume annotation by drawing over the voxels you would like to erase.
 - `Fill Tool`: Flood-fills the clicked region with a volume annotation until it hits the next segment boundary (or the outer edge of your viewport). Used to fill holes in a volume annotation or to relabel a segment with a different id.
 - `Segment Picker`: Select the volume annotation ID of a segment to make it the active cell id to continue labeling with that ID/color.
-- `Bounding Box`: Creates and resizes any bounding box. See also the [Bounding Box (BB) panel](./tracing_ui#Right-Hand Side Panel) below.
+- `Bounding Box`: Creates and resizes any bounding box. See also the [Bounding Box (BB) panel](./tracing_ui.md#right-hand-side-panel) below.
 - `Measurement Tool`: Measure distances between structures or the surface areas of segments by placing waypoints with the mouse.
 
 Please see the detailed documentation on [skeleton](./skeleton_annotation.md#tools) and [volume annotation](./volume_annotation.md#tools) tools for a for explaination of all context-sensitve modifiers that are available to some tools.