Update README.md

Author: mehcode

README.md

@@ -39,7 +39,7 @@
 
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-SQLx is a modern SQL client built from the ground up for Rust, in Rust.
+SQLx is an async, pure Rust SQL crate featuring compile-time checked queries without a DSL.
 
  * **Truly Asynchronous**. Built from the ground-up using async/await for maximum concurrency.