Improve usage share count (#138)

* Improve usage share

* Remove 'No caveats' note from all snippets

* Fix transform-centering usage: #search -> #feat

* transform -> transforms2d

* Add missing link for multiline truncate

snippets/disable-selection.md

@@ -26,6 +26,7 @@ Makes the content unselectable.
 #### Browser support
 
 <span class="snippet__support-note">⚠️ Requires prefixes for full support.</span>
+<br>
 <span class="snippet__support-note">⚠️ This is not a secure method to prevent users from copying content.</span>
 
 - https://caniuse.com/#feat=user-select-none