Prepare Hackage release.

ChangeLog.md

@@ -0,0 +1,7 @@
+# Changelog for dear-imgui
+
+## [1.0.0] Initial Hackage release
+
+Based on 1.83.
+
+[1.0.0]: https://github.com/haskell-game/dear-imgui.hs/tree/v1.0.0

README.md

@@ -25,7 +25,7 @@ OpenGL:
 
 ```
 package dear-imgui
-  flags: +sdl +opengl
+  flags: +sdl +opengl3
 ```
 
 With this done, the following module is the "Hello, World!" of ImGui:

dear-imgui.cabal

@@ -1,10 +1,27 @@
 cabal-version: 3.0
+
 name: dear-imgui
 version: 1.0.0
+author: Oliver Charles
+maintainer: ollie@ocharles.org.uk, aenor.realm@gmail.com
+license: BSD-3-Clause
+
+category: Graphics
+synopsis: Haskell bindings for Dear ImGui.
+description:
+  The package supports multiple rendering backends.
+  Set package flags according to your needs.
+
 build-type: Simple
-data-files:
+extra-source-files:
+  README.md,
+  ChangeLog.md,
   imgui/imgui.h
 
+source-repository head
+  type: git
+  location: https://github.com/haskell-game/dear-imgui.hs
+
 flag opengl2
   description:
     Enable OpenGL 2 backend.