Revise readme title and usage section

Updated the title and removed usage section from the readme.

Author: dy

readme.md

@@ -1,11 +1,7 @@
-# ∴ spræ
+# [∴](https://dy.github.io/sprae) spræ
 
 Microhydration for DOM tree with signals-based reactive attributes.
 
-#### [site](https://dy.github.io/sprae)   [docs](https://dy.github.io/sprae/docs)   [drops](https://dy.github.io/sprae/drops)
-
-## usage
-
 ```html
 <div id="counter" :scope="{count: 1}">
   <p :text="`Clicked ${count} times`"></p>