chore: update README.md

Author: fuelen

README.md

@@ -1,8 +1,5 @@
 # Composite
-A utility that may help in writing composable queries :).
-
-# Example
-See [test file](test/composite_test.exs).
+A utility for writing dynamic queries.
 
 ## Installation
 
@@ -12,8 +9,10 @@ adding `composite` to your list of dependencies in `mix.exs`:
 ```elixir
 def deps do
   [
-    {:composite, "~> 0.2"}
+    {:composite, "~> 0.3"}
   ]
 end
 ```
 Docs can be found at [https://hexdocs.pm/composite](https://hexdocs.pm/composite).
+
+More complex examples of usage can be found in [test file](test/composite_test.exs).