README.md in sewing_kit-0.27.2 vs README.md in sewing_kit-0.27.3

@@ -26,11 +26,11 @@
 
 ### Link to JS/CSS with `erb` Helpers
 The `main` bundle is imported into `erb` files using Rails helpers:
 
 ```erb
-<%= sewing_kit_link_tag *sewing_kit_assets('main') %>
+<%= sewing_kit_link_tag *sewing_kit_assets('main', extension: 'css') %>
 <%= sewing_kit_script_tag *sewing_kit_assets('main') %>
 ```
 
 **Note:** CSS `<link>` tags appear only in production; in development, CSS is embedded within the `main.js` bundle.
 
@@ -79,9 +79,14 @@
             └── sections (optional; container views that compose presentation components into UI blocks)
                 └── Home
                     ├-─ index.js
                     └── Home.js
 ```
+
+## Which version of sewing-kit can I use?
+Assume that the sewing_kit gem's latest minor version requires _at least_ the same minor version of the sewing-kit package.
+
+If sewing-kit makes a breaking change, this gem's minor version will be bumped to match the required sewing-kit version.
 
 ## Transitioning from sprockets-commoner
 It is currently not recommended to use `sprockets-commoner` and `sewing_kit` in the same project.
 Minimally, it is required that the project does not have its own `babel-*` libraries that `sewing-kit` currently has as [dependencies](https://github.com/Shopify/sewing-kit/blob/master/package.json#L97~L102).