Update README.md

Author: iacopPBK

README.md

@@ -11,10 +11,9 @@ This fork is specifically optimized for AMD GFX906 architecture (MI50, MI60, Veg
 
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-## Key Features of fattn-vec-f16.cu - forked
+## Key Features of b6615 - forked
 
 - **Replaced bpermute instructions with swizzle** (AMD native warp reductions, main contribution)
-- **V vectors caching** (another nice bump in speed)  
 
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