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/overflow-scroll-gradient.md

@@ -64,8 +64,6 @@ Adds a fading gradient to an overflowing element to better indicate there is mor
 
 #### Browser support
 
-<span class="snippet__support-note">✅ No caveats.</span>
-
 - https://caniuse.com/#feat=css-gradients
 
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