Updated task_categories and tags

README.md

@@ -66,9 +66,9 @@ g7_lissajous_3,5,8,0,pi2,0_03_1.1_0.2_r0.02_0.029_v90.stl
 - `r0.02_0.029`: Minimum and maximum radius of the tubular neighborhood.
 - `v90`: Voxel resolution per axis. While v90 nominally refers to a 90 × 90 × 90 voxel grid, an offset of 5 voxels per side was added to prevent surface clipping at the bounding box edges.
 As a result, the actual scalar field is discretized into 101 × 101 × 101 = 1,030,301 grid points, yielding 1,000,000 voxels in total.
-- `.stl`: File extension. This denotes the __smoothed__ version of the surface mesh.
+- `.stl`: File extension. In this example, as there is no suffix, this filename ending corresponds to the __smoothed__ version of the surface mesh.
 
-  As mentioned above, the other file types use the following suffixes to indicate their content:
+  As mentioned earlier, the other file types use the following suffixes:
   
   - `_ns.stl`: The non-smoothed surface mesh, output directly from the Marching Cubes algorithm (raw geometry).
   - `_sf.txt`: The scalar field used to generate the surface.