Create data_config_en.md

Author: NirantK

docs/data_config_en.md

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+# Data configuration
+
+**Install [torchtext](https://github.com/pytorch/text) for data processing**
+
+The datasets module currently contains:
+
+- Sentiment analysis: SST and IMDb
+- Question classification: TREC
+- Entailment: SNLI
+- Language modeling: WikiText-2
+- Machine translation: Multi30k, IWSLT, WMT14
+
+Others are planned or a work in progress:
+
+- Question answering: SQuAD
+
+The current need to configure the data collection
+
+### Glove 
+
+Download to the project's root directory under the folder vector_cache
+
+- [42B](http://nlp.stanford.edu/data/glove.42B.300d.zip)
+- [840B](http://nlp.stanford.edu/data/glove.840B.300d.zip)
+- [twitter.27B](http://nlp.stanford.edu/data/glove.twitter.27B.zip)
+- [6B](http://nlp.stanford.edu/data/glove.6B.zip)
+
+### Classification Datasets
+
+- Download [IMDB](http://ai.stanford.edu/~amaas/data/sentiment/aclImdb_v1.tar.gz) dataset to .data/imdb
+- Download [SST](http://nlp.stanford.edu/sentiment/trainDevTestTrees_PTB.zip) dataset to .data/sst
+- Download TREC [Question Classification ](http://cogcomp.org/Data/QA/QC/train_5500.label) [2](http://cogcomp.org/Data/QA/QC/TREC_10.label) dataset to .data/imdb
+
+### File Structure
+
+- TextClassificationBenchmark
+	- .data
+		- imdb
+			- aclImdb_v1.tar.gz
+		- sst
+			- trainDevTestTrees_PTB.zip
+		- trec
+			- train_5500.label
+			- TREC_10.label
+	- .vector_cache
+		- glove.42B.300d.zip
+		- glove.840B.300d.zip
+		- glove.twitter.27B.zip
+		- glove.6B.zip
+
+	
+
+## More datasets and updates coming soon, please wait for us to update further