grt: fix README description for -res_aware_nets_percentage

Signed-off-by: Jonas Gava <jfgava@precisioninno.com>

Author: jfgava

src/grt/README.md

@@ -53,7 +53,7 @@ global_route
 | `-end_incremental` | This flag run incremental GRT with the nets modified. The default is false. |
 | `-use_cugr` | This flag run GRT using CUGR as the router solver. NOTE: this is not ready for production. |
 | `-resistance_aware` | This flag enables resistance-aware layer assignment and 3D routing. NOTE: this is not ready for production. |
-| `-res_aware_nets_percentage` | Set the percentage of resistance-aware nets (e.g. `-res_aware_nets_percentage 100` (for 100%)). The default value is `15` with resistance-aware enabled and `0` otherwise, and the allowed values are integers `[0, MAX_INT]`. |
+| `-res_aware_nets_percentage` | Set the percentage of resistance-aware nets (e.g. `-res_aware_nets_percentage 100` (for 100%)). The default value is `15` with resistance-aware enabled and `0` otherwise, and the allowed values are floats between `[0, 100]`. |
 | `-infinite_cap` | Enables "infinite" gcell capacity for testing purpose. NOTE: this is not recommended for production flows. |
 | `-snapshot_batched_width` | Set the semantic width of snapshot-batched routing (max batches per wave). The default is `0`, preserving the non-batched behavior. Set a positive integer to enable batched routing; allowed values are integers `[1, MAX_INT]`. Execution width still follows `set_thread_count`. NOTE: this is not recommended for production flows; it is intended for exploration and research projects. |