Add classifier pkl

outputs/sentence_classifier/README.md

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+# Trained Skill Sentence Classifer
+
+This directory contains a zipped `.pkl` file of the `2021.08.16.yaml` trained skills sentence classifier.
+
+To learn more about the model, its features, experiments and qualitative observations, please see the [skills_taxonomy_v2/pipeline/sentence_classifier/](https://github.com/nestauk/skills-taxonomy-v2/tree/dev/skills_taxonomy_v2/pipeline/sentence_classifier) directory.
+
+### Sentence classifier - 2021.08.16.yaml
+
+python skills_taxonomy_v2/pipeline/sentence_classifier/sentence_classifier.py --yaml_file_name 2021.08.16
+
+The test results for this config were:
+
+Train: Took 314.79356503486633 seconds
+
+              precision    recall  f1-score   support
+
+           0       0.98      1.00      0.99      3931
+           1       1.00      0.95      0.98      1951
+
+    accuracy                           0.98      5882
+
+macro avg 0.99 0.98 0.98 5882
+weighted avg 0.98 0.98 0.98 5882
+
+Test: Took 132.80465602874756 seconds
+
+              precision    recall  f1-score   support
+
+           0       0.90      0.97      0.93       694
+           1       0.93      0.78      0.85       344
+
+    accuracy                           0.90      1038
+
+macro avg 0.90 0.90 0.90 1038
+weighted avg 0.90 0.90 0.90 1038