diff --git a/SpaceInvaders.cabal b/SpaceInvaders.cabal
--- a/SpaceInvaders.cabal
+++ b/SpaceInvaders.cabal
@@ -1,5 +1,5 @@
 name: SpaceInvaders
-version: 0.4.4
+version: 0.4.5
 cabal-Version: >= 1.6
 license: BSD3
 license-file: LICENSE
@@ -9,6 +9,7 @@
 category: Game
 synopsis: Video game
 description: Video game implemented in Yampa.
+             <<https://github.com/ivanperez-keera/SpaceInvaders/blob/develop/screenshots/gameplay.gif?raw=true>>
 build-type: Simple
 
 executable spaceInvaders
diff --git a/src/Animate.hs b/src/Animate.hs
--- a/src/Animate.hs
+++ b/src/Animate.hs
@@ -1,4 +1,4 @@
-{- $Id: Animate.hs,v 1.3 2004/11/18 13:02:26 henrik Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/ColorBindings.hs b/src/ColorBindings.hs
--- a/src/ColorBindings.hs
+++ b/src/ColorBindings.hs
@@ -1,4 +1,4 @@
-{- $Id: ColorBindings.hs,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/Colors.hs b/src/Colors.hs
--- a/src/Colors.hs
+++ b/src/Colors.hs
@@ -1,4 +1,4 @@
-{- $Id: Colors.hs,v 1.3 2004/11/18 13:02:26 henrik Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/Command.hs b/src/Command.hs
--- a/src/Command.hs
+++ b/src/Command.hs
@@ -1,4 +1,4 @@
-{- $Id: Command.hs,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/Diagnostics.hs b/src/Diagnostics.hs
--- a/src/Diagnostics.hs
+++ b/src/Diagnostics.hs
@@ -1,4 +1,4 @@
-{- $Id: Diagnostics.hs,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/IdentityList.hs b/src/IdentityList.hs
--- a/src/IdentityList.hs
+++ b/src/IdentityList.hs
@@ -1,4 +1,4 @@
-{- $Id: IdentityList.hs,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/Object.hs b/src/Object.hs
--- a/src/Object.hs
+++ b/src/Object.hs
@@ -1,4 +1,4 @@
-{- $Id: Object.hs,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/ObjectBehavior.hs b/src/ObjectBehavior.hs
--- a/src/ObjectBehavior.hs
+++ b/src/ObjectBehavior.hs
@@ -1,4 +1,4 @@
-{- $Id: ObjectBehavior.as,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/Parser.hs b/src/Parser.hs
--- a/src/Parser.hs
+++ b/src/Parser.hs
@@ -1,4 +1,4 @@
-{- $Id: Parser.hs,v 1.3 2004/11/18 13:02:26 henrik Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/PhysicalDimensions.hs b/src/PhysicalDimensions.hs
--- a/src/PhysicalDimensions.hs
+++ b/src/PhysicalDimensions.hs
@@ -1,4 +1,4 @@
-{- $Id: PhysicalDimensions.hs,v 1.2 2003/11/10 21:28:58 antony Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/RenderLandscape.hs b/src/RenderLandscape.hs
--- a/src/RenderLandscape.hs
+++ b/src/RenderLandscape.hs
@@ -1,4 +1,4 @@
-{- $Id: RenderLandscape.hs,v 1.3 2004/11/18 13:02:26 henrik Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/RenderObject.hs b/src/RenderObject.hs
--- a/src/RenderObject.hs
+++ b/src/RenderObject.hs
@@ -1,4 +1,4 @@
-{- $Id: RenderObject.hs,v 1.3 2004/11/18 13:02:26 henrik Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *
diff --git a/src/WorldGeometry.hs b/src/WorldGeometry.hs
--- a/src/WorldGeometry.hs
+++ b/src/WorldGeometry.hs
@@ -1,4 +1,4 @@
-{- $Id: WorldGeometry.hs,v 1.3 2004/11/18 13:02:26 henrik Exp $
+{-
 ******************************************************************************
 *                              I N V A D E R S                               *
 *                                                                            *