added readme

Author: holubj

README.md

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+# JavaScript minifier & obfuscator
+
+Javascript minifier and obfuscator written in TypeScript.
+
+Contains the following transformations:
+
+- Comments and whitespace characters deletion
+- Redundant code deletion (unnecessary parentheses, ..)
+- Code optimization (dead code elimination, expression simplification, ..)
+- Identifiers renaming
+- Stopping debugger in a loop
+- Split of variable declarations and their location randomization
+- Numbers obfuscation
+- Expressions obfuscation
+- Randomizing the order of function parameters
+- Operators outlining (unary, binary, assignment)
+- Console redefinition
+- Strings obfuscation
+- Randomizing the order of function definitions
+- Function merging
+- Code outlining into eval
+- Code encryption and integrity protection
+
+Each transformation can be configured in `config.yaml` file.
+
+## Installation
+
+```
+npm install
+```
+
+## Usage
+
+```
+npm start <inputFile> [<outputFile>]
+```