new mapping (#28)

Author: dmitry-brazhenko

SharpToken/Lib/Model.cs

@@ -36,6 +36,7 @@ public static class Model
             { "code-davinci-edit-001", "p50k_edit" },
             // embeddings
             { "text-embedding-ada-002", "cl100k_base" },
+            { "text-embedding-3-large", "cl100k_base" },
             // old embeddings
             { "text-similarity-davinci-001", "r50k_base" },
             { "text-similarity-curie-001", "r50k_base" },