chore: fix why section in readme

Author: satazor

README.md

@@ -32,7 +32,7 @@ Node has issues when using spawn on Windows:
 - It does not support [shebangs](https://en.wikipedia.org/wiki/Shebang_(Unix))
 - Has problems running commands with [spaces](https://github.com/nodejs/node/issues/7367)
 - Has problems running commands with posix relative paths (e.g.: `./my-folder/my-executable`)
-- Circuvents an [issue](https://github.com/moxystudio/node-cross-spawn/issues/82) around command shims (files in `node_modules/.bin/`), where arguments with quotes and parenthesis would result in an [invalid syntax error](https://github.com/moxystudio/node-cross-spawn/blob/e77b8f22a416db46b6196767bcd35601d7e11d54/test/index.test.js#L149)
+- Has an [issue](https://github.com/moxystudio/node-cross-spawn/issues/82) with command shims (files in `node_modules/.bin/`), where arguments with quotes and parenthesis would result in [invalid syntax error](https://github.com/moxystudio/node-cross-spawn/blob/e77b8f22a416db46b6196767bcd35601d7e11d54/test/index.test.js#L149)
 - No `options.shell` support on node `<v4.8`
 
 All these issues are handled correctly by `cross-spawn`.