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/easing-variables.md

@@ -61,8 +61,6 @@ The variables are defined globally within the `:root` CSS pseudo-class which mat
 
 #### Browser support
 
-<span class="snippet__support-note">✅ No caveats.</span>
-
 - https://caniuse.com/#feat=css-variables
 
 <!-- tags: animation -->