Added README.md file with doc

README.md

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+# Grooven-tool
+
+![GitHub](https://badgen.net/badge/icon/github?icon=github&label)
+![version](https://img.shields.io/badge/version-1.1-blue)
+[![Awesome](https://awesome.re/badge.svg)](https://awesome.re)
+
+Grooven-tool is a simple tool for transforming encoded data into its canonical form, or for 
+transforming raw data into various encoded and hashed forms. It is capable of intelligently 
+recognizing several encoding formats using heuristic techniques.
+
+Encoding is the process of putting a sequence of character’s (letters, numbers, punctuation, and 
+symbols) into a specialized format which is used for efficient transmission or storage. Decoding is 
+the opposite process of encoding the conversion of an encoded format back into the original format. 
+Encoding and decoding can be used in data communications, networking, and storage.
+
+There are 7 (at the moment) types of decoder format in Grooven-tool:
+
+    Plain text
+    Base64
+    Hex
+    Morse
+    QrCode
+    Rot13
+    Vigenere
+
+### Base64 algorithm
+
+The Base64 algorithm is one of the algorithms for Encoding and Decoding an object into ASCII format, 
+which is meant for the base number 64 or one of the methods used to encode the binary data. Base64 
+Commonly used in various applications such as e-mail via MME, XML data, or for URL encoding purposes.
+
+### Hex algorithm
+
+The hexadecimal (also base 16 or simply hex) numeral system is a positional numeral system that 
+represents numbers using a radix (base) of 16. Unlike the decimal system representing numbers 
+using 10 symbols, hexadecimal uses 16 distinct symbols, most often the symbols "0"–"9" to represent 
+values 0 to 9, and "A"–"F" (or alternatively "a"–"f") to represent values from 10 to 15.
+
+### Morse algorithm
+
+The Morse code is a method used in telecommunication to encode text characters as standardized 
+sequences of two different signal durations, called dots and dashes, or dits and dahs. Morse code 
+is named after Samuel Morse, one of the inventors of the telegraph.
+
+### QrCode algorithm
+
+The QR code (an initialism for quick response code) is a type of matrix barcode (or two-dimensional 
+barcode) invented in 1994 by the Japanese automotive company Denso Wave. A barcode is a 
+machine-readable optical label that can contain information about the item to which it is attached. 
+In practice, QR codes often contain data for a locator, identifier, or tracker that points to a 
+website or application. The QR code is case sensitive. It uses four standardized encoding modes 
+(numeric, alphanumeric, byte/binary, and kanji) to store data efficiently; extensions may also be used.
+
+### Rot13 algorithm
+
+The Rot13 ("rotate by 13 places", sometimes hyphenated ROT-13) is a simple letter substitution 
+cipher that replaces a letter with the 13th letter after it in the alphabet. ROT13 is a special 
+case of the Caesar cipher which was developed in ancient Rome.
+
+### Vigenere algorithm
+
+The Vigenere cipher is a method of encrypting alphabetic text by using a series of interwoven 
+Caesar ciphers, based on the letters of a keyword. It employs a form of polyalphabetic substitution.
+
+
+## Setting up and Building
+
+There is command to download and install dependencies and build groovy project:
+
+```shell
+gradle buildDependents && gradle build
+```
+
+You may build project to jar-file and run it like java application:
+
+```shell
+gradle jar
+```
+
+## Run project
+
+```shell
+gradle run
+```
+or 
+
+```shell
+groovy App.groovy
+```
+
+## LICENCE
+
+MIT License
+
+Copyright (c) 2021 Bread White
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.