Update README.md

README.md

@@ -15,7 +15,7 @@ Kmer-db operates in one of the following modes:
 Options:
 
 * `-t <threads>` - number of threads (default: number of available cores),
-* `-buffer <size_mb>` - size of cache buffer in megabytes, applies to `all2all` mode (default: 8; use L2 size for Intel CPUs and L3 for AMD to maximize performance).
+* `-buffer <size_mb>` - size of cache buffer in megabytes, applies to `all2all` mode (use L3 size for Intel CPUs and L2 for AMD to maximize performance; default: 8).
 
 The meaning of the positional arguments depends on the selected mode.