Readme tweaks

README.md

@@ -16,7 +16,7 @@ npm install --save-dev webpack-bugsnag-plugins
 const { BugsnagBuildReporterPlugin } = require('webpack-bugsnag-plugins')
 ```
 
-## `BugsnagBuildReporterPlugin(build, opts): stream`
+### `BugsnagBuildReporterPlugin(build, opts): stream`
 
 Reports your application's build to Bugsnag. It can auto detect source control from `.git`, `.hg` and `package.json`.
 This plugin hooks into the `'after-emit'` event once all output files have been generated by the Webpack compiler. If anything causes the compilation to fail before this step, the build report will not get sent.
@@ -37,7 +37,7 @@ This plugin hooks into the `'after-emit'` event once all output files have been
   - `path: string` the path to search for source control info, defaults to `process.cwd()`
   - `endpoint: string` post the build payload to a URL other than the default (`https://build.bugsnag.com`)
 
-### Usage
+#### Usage
 
 ```js
 const { BugsnagBuildReporterPlugin } = require('webpack-bugsnag-plugins')