[docs] update librispeech u2++ conformer results (#478)

Author: pengzhendong

examples/librispeech/s0/README.md

@@ -7,11 +7,17 @@
 * Decoding info: ctc_weight 0.3, reverse weight 0.5, average_num 30
 * Git hash: 65270043fc8c2476d1ab95e7c39f730017a670e0
 * Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/librispeech/20210610_conformer_bidecoder_exp.tar.gz
+* LM-tgmed: [3-gram.pruned.1e-7.arpa.gz](http://www.openslr.org/resources/11/3-gram.pruned.1e-7.arpa.gz)
+* LM-tglarge: [3-gram.arpa.gz](http://www.openslr.org/resources/11/3-gram.arpa.gz)
+* LM-fglarge: [4-gram.arpa.gz](http://www.openslr.org/resources/11/4-gram.arpa.gz)
 
-| decoding mode                  | test clean | test other |
-|--------------------------------|------------|------------|
-| ctc prefix beam search         | 2.96       | 7.14       |
-| attention rescoring            | 2.66       | 6.53       |
+| decoding mode                    | test clean | test other |
+|----------------------------------|------------|------------|
+| ctc prefix beam search           | 2.96       | 7.14       |
+| attention rescoring              | 2.66       | 6.53       |
+| LM-tgmed + attention rescoring   | 2.78       | 6.32       |
+| LM-tglarge + attention rescoring | 2.68       | 6.10       |
+| LM-fglarge + attention rescoring | 2.65       | 5.98       |
 
 ## Conformer Result
 
@@ -20,16 +26,16 @@
 * Decoding info: ctc_weight 0.5, average_num 30
 * Git hash: 90d9a559840e765e82119ab72a11a1f7c1a01b78
 * Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/librispeech/20210216_conformer_exp.tar.gz
-* LM-fgbig: [4-gram.arpa.gz](http://www.openslr.org/resources/11/4-gram.arpa.gz)
+* LM-fglarge: [4-gram.arpa.gz](http://www.openslr.org/resources/11/4-gram.arpa.gz)
 
-| decoding mode                  | test clean | test other |
-|--------------------------------|------------|------------|
-| ctc greedy search              | 3.51       | 9.57       |
-| ctc prefix beam search         | 3.51       | 9.56       |
-| attention decoder              | 3.05       | 8.36       |
-| attention rescoring            | 3.18       | 8.72       |
-| attention rescoring (beam 50)  | 3.12       | 8.55       |
-| LM-fgbig + attention rescoring | 3.09       | 7.40       |
+| decoding mode                    | test clean | test other |
+|----------------------------------|------------|------------|
+| ctc greedy search                | 3.51       | 9.57       |
+| ctc prefix beam search           | 3.51       | 9.56       |
+| attention decoder                | 3.05       | 8.36       |
+| attention rescoring              | 3.18       | 8.72       |
+| attention rescoring (beam 50)    | 3.12       | 8.55       |
+| LM-fglarge + attention rescoring | 3.09       | 7.40       |
 
 ## Conformer U2++ Result
 
@@ -58,28 +64,28 @@ test other
 * Decoding info: ctc_weight 0.5, average_num 30
 * Git hash: 90d9a559840e765e82119ab72a11a1f7c1a01b78
 * Model link: http://mobvoi-speech-public.ufile.ucloud.cn/public/wenet/librispeech/20210215_unified_conformer_exp.tar.gz
-* Default LM: [3-gram.pruned.1e-7.arpa.gz](http://www.openslr.org/resources/11/3-gram.pruned.1e-7.arpa.gz)
-* LM-tgbig: [3-gram.arpa.gz](http://www.openslr.org/resources/11/3-gram.arpa.gz)
-* LM-fgbig: [4-gram.arpa.gz](http://www.openslr.org/resources/11/4-gram.arpa.gz)
+* LM-tgmed: [3-gram.pruned.1e-7.arpa.gz](http://www.openslr.org/resources/11/3-gram.pruned.1e-7.arpa.gz)
+* LM-tglarge: [3-gram.arpa.gz](http://www.openslr.org/resources/11/3-gram.arpa.gz)
+* LM-fglarge: [4-gram.arpa.gz](http://www.openslr.org/resources/11/4-gram.arpa.gz)
 
 test clean
-| decoding mode                  | full | 16   |
-|--------------------------------|------|------|
-| ctc prefix beam search         | 4.26 | 5.00 |
-| attention decoder              | 3.05 | 3.44 |
-| attention rescoring            | 3.72 | 4.10 |
-| attention rescoring (beam 50)  | 3.57 | 3.95 |
-| LM + attention rescoring       | 3.56 | 4.02 |
-| LM-tgbig + attention rescoring | 3.40 | 3.82 |
-| LM-fgbig + attention rescoring | 3.38 | 3.74 |
+| decoding mode                    | full | 16   |
+|----------------------------------|------|------|
+| ctc prefix beam search           | 4.26 | 5.00 |
+| attention decoder                | 3.05 | 3.44 |
+| attention rescoring              | 3.72 | 4.10 |
+| attention rescoring (beam 50)    | 3.57 | 3.95 |
+| LM-tgmed + attention rescoring   | 3.56 | 4.02 |
+| LM-tglarge + attention rescoring | 3.40 | 3.82 |
+| LM-fglarge + attention rescoring | 3.38 | 3.74 |
 
 test other
-| decoding mode                  | full  | 16    |
-|--------------------------------|-------|-------|
-| ctc prefix beam search         | 10.87 | 12.87 |
-| attention decoder              | 9.07  | 10.44 |
-| attention rescoring            | 9.74  | 11.61 |
-| attention rescoring (beam 50)  | 9.34  | 11.13 |
-| LM + attention rescoring       | 8.78  | 10.26 |
-| LM-tgbig + attention rescoring | 8.34  | 9.74  |
-| LM-fgbig + attention rescoring | 8.17  | 9.44  |
+| decoding mode                    | full  | 16    |
+|----------------------------------|-------|-------|
+| ctc prefix beam search           | 10.87 | 12.87 |
+| attention decoder                | 9.07  | 10.44 |
+| attention rescoring              | 9.74  | 11.61 |
+| attention rescoring (beam 50)    | 9.34  | 11.13 |
+| LM-tgmed + attention rescoring   | 8.78  | 10.26 |
+| LM-tglarge + attention rescoring | 8.34  | 9.74  |
+| LM-fglarge + attention rescoring | 8.17  | 9.44  |