docs: fix typo in README

README.md

@@ -19,9 +19,9 @@ npm install damerau-levenshtein
 ## Use with ES6 modules
 
 ```js
-import * as levenshtien from 'damerau-levenshtein';
+import * as levenshtein from 'damerau-levenshtein';
 
-const lev = levenshtien('hello world', 'Hello World!');
+const lev = levenshtein('hello world', 'Hello World!');
 // { steps: 4, relative: 0.3076923076923077, similarity: 0.6923076923076923 }
 ```
 
@@ -30,15 +30,15 @@ Please see [tests](./test/test.js) for more insights.
 ## Use with TypeScript
 
 ```ts
-import * as levenshtien from 'damerau-levenshtein';
+import * as levenshtein from 'damerau-levenshtein';
 
 interface LevenshteinResponse {
   steps: number;
   relative: number;
   similarity: number;
 }
 
-const lev: LevenshteinResponse = levenshtien('hello world', 'Hello World!');
+const lev: LevenshteinResponse = levenshtein('hello world', 'Hello World!');
 
 console.log(lev.steps);
 // 2