add readme

README.md

@@ -1 +1,37 @@
-# n_gram_language_detection
+# n_gram_language_detection
+
+To train unigram model with English corpus
+
+```
+python -m main train -n 1 -l en
+```
+
+To train unigram model with French corpus
+
+```
+python -m main train -n 1 -l fr
+```
+
+To train bigram model with English corpus
+
+```
+python -m main train -n 2 -l en
+```
+
+To train bigram model with French corpus
+
+```
+python -m main train -n 2 -l fr
+```
+
+To detect the language used as sentences with unigram
+
+```
+python -m main predict -n 1
+```
+
+To detect the language used as sentences with bigram
+
+```
+python -m main predict -n 2
+```