Update _coverpage.md

docs/_coverpage.md

@@ -2,7 +2,7 @@
 <img src="assets/images/logo.png" height="90px" alt="Gravity Programming Language" title="Gravity Programming Language">
 </p>
 
-# Gravity <small>0.78</small>
+# Gravity <small>0.8.0</small>
 > An embeddable programming language.
 
 * Simple and lightweight