Update README.md

Issue?
Old: 12B 13B 11,846,072,320 11,327,027,200,
New: 13B 12B 11,846,072,320 11,327,027,200

README.md

@@ -239,5 +239,5 @@ current naming convention (70M, 160M, etc.) is based on total parameter count.
 | 1.4B                  | 1.3B       | 1,414,647,808  | 1,208,602,624        |
 | 2.8B                  | 2.7B       | 2,775,208,960  | 2,517,652,480        |
 | 6.9B                  | 6.7B       | 6,857,302,016  | 6,444,163,072        |
-| 12B                   | 13B        | 11,846,072,320 | 11,327,027,200       |
+| 13B                   | 12B        | 11,846,072,320 | 11,327,027,200       |
 </figure>