revert extension-base's README.md

packages/extension-base/README.md

@@ -5,8 +5,7 @@ Functions, classes and other utilities used in `@polkadot/extension`. These incl
 - message passing,
 - scripts injected inside pages.
 
-They are primarily meant to be used in `@polkadot/extension`, and can be broken 
-without any notice to cater for `@polkadot/extension`'s needs.
+They are primarily meant to be used in `@polkadot/extension`, and can be broken without any notice to cater for `@polkadot/extension`'s needs.
 
 They are exported here if you wish to use part of them in the development of your 
 own extension. Don't forget to add `process.env.EXTENSION_PREFIX` to separate