Update README.md.

Author: Score2

README.md

@@ -1,2 +1,12 @@
-# FastScript
+![](https://github.com/Score2/FastScript/blob/master/images/animate_logo.gif?raw=true)
+***
+# About
 FastScript is a Spigot plugin, which can run JavaScript-based scripts more efficiently.
+
+> At present, the project is still unfinished and cannot be used.
+
+# Build
+In the project root directory:
+```
+./gradle jar
+```