Update model card: add transcribe_cpp metadata block (raw WER/RTF + capabilities)

README.md

@@ -14,9 +14,27 @@ tags:
   - parakeet
   - conformer
   - rnnt
+transcribe_cpp:
+  wer_librispeech_test_clean:
+    f32: 1.45
+    f16: 1.45
+    q8_0: 1.46
+    q6_k: 1.43
+    q5_k_m: 1.43
+    q4_k_m: 1.41
+  rtf_m4_max:
+    metal: 125.5
+    cpu: 17.5
+  rtf_ryzen_4750u:
+    vulkan: 11
+    cpu: 5.5
+  streaming: false
+  translate: false
+  lang_detect: false
+  timestamps: token
 ---
 
-# parakeet-rnnt-1.1b — transcribe.cpp GGUF
+# parakeet-rnnt-1.1b: transcribe.cpp GGUF
 
 GGUF conversions of [nvidia/parakeet-rnnt-1.1b](https://huggingface.co/nvidia/parakeet-rnnt-1.1b) for use
 with [transcribe.cpp](https://github.com/handy-computer/transcribe.cpp).