(docs): add initial README

- with all my regular badges
- with most of my classic sections (Installation, Usage, Examples,
  How it Works, and Credits)

- pretty simple as it's just Jest, but you import the globals o.o

Author: agilgur5

README.md

@@ -0,0 +1,51 @@
+# jest-without-globals
+
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+<br>
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+
+Explicitly import [Jest](https://github.com/facebook/jest) globals.
+
+## Installation
+
+`npm i -D jest-without-globals`
+
+## Usage
+
+```typescript
+import { describe, it, expect } from 'jest-without-globals'
+
+describe('describe should create a section', () => {
+  it('it should checkmark', () => {
+    expect('').toBe('')
+  })
+})
+```
+
+All of the functions available in [Jest's API](https://jestjs.io/docs/en/api), as well as `jest` and `expect`, can be imported from `jest-without-globals`.
+
+## Examples
+
+Can take a look at the [tests](./test/) for usage of more of the globals, but basically you can now just `import` any Jest global.
+
+## How it works
+
+Basically just takes Jest's globals and exports them.
+The source code is currently shorter than this README, so [take a look under the hood](./src/)! :)
+
+## Credits
+
+Some inspiration for this came from [this workaround](https://github.com/facebook/jest/pull/7571#issuecomment-498634094) to avoid globals, which I had been using in projects previously.
+I wanted a package I could re-use in all my projects' tests instead of constantly having to create a helper file and map its name, and so `jest-without-globals` was born.