Update README.md

Author: HobbitLong

README.md

@@ -87,7 +87,7 @@ Performance is measured by classification accuracy (%)
 | PKT | 74.54 | 73.45 | 70.34 | 70.25 | 72.61 | 73.64 | 72.88 |
 | AB | 72.50 | 72.38 | 69.47 | 69.53 | 70.98 | 73.17 | 70.94 |
 | FT | 73.25 | 71.59 | 69.84 | 70.22 | 72.37 | 72.86 | 70.58 |
-| FSP | 72.91 | 0.00 | 69.95 | 70.11 | 71.89 | 72.62 | 70.23 |
+| FSP | 72.91 | N/A | 69.95 | 70.11 | 71.89 | 72.62 | 70.23 |
 | NST | 73.68 | 72.24 | 69.60 | 69.53 | 71.96 | 73.30 | 71.53 |
 | **CRD** | **75.48** | **74.14** | **71.16** | **71.46** | **73.48** | **75.51** | **73.94** |