npm install tipoGenerate common typos for words.

Returns a list of all words with one letter replaced by a neighbouring key.
#### Example:
``js`
var typos = tipo.getKeyboardMissTypos('cat');
console.log(typos);
// [
// 'xat', 'vat', 'fat', 'dat', 'czt', 'cst', 'cwt',
// 'cqt', 'car', 'caf', 'cag', 'cay', 'ca6', 'ca5'
// ]
Returns a list of all words with a missing letter.
#### Example:
`js`
var typos = tipo.getMissingLetterTypos('cat');
console.log(typos);
// [ 'at', 'ct', 'ca' ]
Returns a list of words with a repeated letter.
#### Example:
`js`
var typos = tipo.getDoubleLetterTypos('cat');
console.log(typos);
// [ 'ccat', 'caat', 'catt' ]
Returns a list of words where two letters are swapped.
#### Example:
`js`
var typos = tipo.getMixedLetterTypos('cat');
console.log(typos);
// [ 'act', 'cta' ]
Returns a combination of all typo's.
#### Example:
`js``
var typos = tipo.getTypos('cat');
console.log(typos);
// [
// 'xat', 'vat', 'fat', 'dat', 'czt', 'cst', 'cwt', 'cqt', 'car', 'caf',
// 'cag', 'cay', 'ca6', 'ca5', 'at', 'ct', 'ca', 'ccat', 'caat', 'catt',
// 'act', 'cta'
// ]