[Docs] Fix a model link and add the metafile for SATRN (#473)

* update model link

* add metafile

configs/textrecog/satrn/README.md

@@ -38,4 +38,4 @@
 | :-------------------------------------------------------------: | :----: | :----------: | :--: | :-: | :--: | :------------: | :--: | :---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
 |                                                                 | IIIT5K |     SVT      | IC13 |     | IC15 |      SVTP      | CT80 |
 | [Satrn](/configs/textrecog/satrn/satrn_academic.py) |  96.1  |     93.5     | 95.7 |     | 84.1 |      88.5      | 90.3 |      [model](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_academic_20210809-59c8c92d.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/satrn/20210809_093244.log.json)      |
-| [Satrn_small](/configs/textrecog/satrn/satrn_small.py) |  94.7  |     91.3     | 95.4 |     | 81.9 |      85.9      | 86.5 |      [model](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_academic_20210809-59c8c92d.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/satrn/20210811_053047.log.json)      |
+| [Satrn_small](/configs/textrecog/satrn/satrn_small.py) |  94.7  |     91.3     | 95.4 |     | 81.9 |      85.9      | 86.5 |      [model](https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_small_20210811-2badf6fc.pth) \| [log](https://download.openmmlab.com/mmocr/textrecog/satrn/20210811_053047.log.json)      |

configs/textrecog/satrn/metafile.yml

@@ -0,0 +1,84 @@
+Collections:
+- Name: SATRN
+  Metadata:
+    Training Data: OCRDataset
+    Training Techniques:
+      - Adam
+    Training Resources: 8x Tesla V100
+    Epochs: 6
+    Batch Size: 512
+    Architecture:
+      - ShallowCNN
+      - SatrnEncoder
+      - TFDecoder
+  Paper: https://arxiv.org/pdf/1910.04396.pdf
+  README: configs/textrecog/satrn/README.md
+
+Models:
+  - Name: satrn_academic
+    In Collection: SATRN
+    Config: configs/textrecog/satrn/satrn_academic.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Regular Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 96.1
+      - Task: Regular Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 93.5
+      - Task: Regular Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 95.7
+      - Task: Irregular Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 84.1
+      - Task: Irregular Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 88.5
+      - Task: Irregular Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 90.3
+    Weights: https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_academic_20210809-59c8c92d.pth
+
+  - Name: satrn_small
+    In Collection: SATRN
+    Config: configs/textrecog/satrn/satrn_small.py
+    Metadata:
+      Training Data:
+        - SynthText
+        - Syn90k
+    Results:
+      - Task: Regular Text Recognition
+        Dataset: IIIT5K
+        Metrics:
+          word_acc: 94.7
+      - Task: Regular Text Recognition
+        Dataset: SVT
+        Metrics:
+          word_acc: 91.3
+      - Task: Regular Text Recognition
+        Dataset: ICDAR2013
+        Metrics:
+          word_acc: 95.4
+      - Task: Irregular Text Recognition
+        Dataset: ICDAR2015
+        Metrics:
+          word_acc: 81.9
+      - Task: Irregular Text Recognition
+        Dataset: SVTP
+        Metrics:
+          word_acc: 85.9
+      - Task: Irregular Text Recognition
+        Dataset: CT80
+        Metrics:
+          word_acc: 86.5
+    Weights: https://download.openmmlab.com/mmocr/textrecog/satrn/satrn_small_20210811-2badf6fc.pth