Add readme and dependencies

README.md

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 # eslint-config-clean-code
+
 Linter rules for clean and fast TypeScript development
+
+# Why?
+
+Because every TypeScript developer deserves not to think about code style and minor approaches.
+
+# Installation
+
+1. `npm install --save-dev eslint-config-clean-code`
+1. In your  `.eslintrc` file at the project root, add `extends: eslint-config-clean-code`.
+1. Customise the rules as required.
+
+# Choices
+
+## Single automatic code formatting
+
+We consciously disable rules related to whitespace, indents, etc. and recommend using [`Prettier`](https://prettier.io/docs/en/install.html) instead, as a complementary tool to your linter. Having wasted numerous workdays bickering about minor formatting issues, this is the only sane choice for all projects, in our opinion.