Fix "bootstraping" typo (#111)

README.md

@@ -52,7 +52,7 @@ mocha -r ts-node/register -r tsconfig-paths/register "test/**/*.ts"
 
 As long as the command has something similar to a `--require` option that can load a module before it starts, tsconfig-paths should be able to work with it.
 
-## Bootstraping with explicit params
+## Bootstrapping with explicit params
 
 If you want more granular control over tsconfig-paths you can bootstrap it. This can be useful if you for instance have compiled with `tsc` to another directory where `tsconfig.json` doesn't exists.