README added

README.md

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+## hns
+
+#### *hide'n'show
+
+Just wanted to test encryption with go
+
+#### Installation
+
+To install packages:
+`$ go get`
+
+To build:
+`$ go build`
+
+#### Usage
+
+`$ hns test`
+
+A prompt will ask a password and confirmation and will generate a file names `test.hdn` and will rename `test` to `test.origin` 
+
+To decypher the .hdn (hidden) file, just run the program again on the hidden file
+
+`$ hns test.hdn`