Fix double spacing

Author: dfmcphee

CHANGELOG.md

@@ -11,7 +11,7 @@
 ### Bug fixes
 * Fixed PageActions spacing in IE11 ([#544](https://github.com/Shopify/polaris-react/pull/544))
 * Fixed ID inconsistency on TextFields ([#553](https://github.com/Shopify/polaris-react/pull/553))
-* Fixed spacing on Page component with no header (thanks  [bakura10](https://github.com/bakura10)  for the  [original issue](https://github.com/Shopify/polaris/issues/160)) ([#563](https://github.com/Shopify/polaris-react/pull/563/files))
+* Fixed spacing on Page component with no header (thanks [bakura10](https://github.com/bakura10) for the [original issue](https://github.com/Shopify/polaris/issues/160)) ([#563](https://github.com/Shopify/polaris-react/pull/563/files))
 * Fixed disabled state on primary and destructive buttons ([#549](https://github.com/Shopify/polaris-react/pull/549/files))
 
 ### Chores