Fixed line breaks in credits.

Docs/Urho3D.dox

@@ -117,12 +117,12 @@ Urho3D uses the following third-party libraries:
 - stb_vorbis 0.99996 (http://nothings.org/)
 - tolua++ 1.0.93 (http://www.codenix.com/~tolua)
 
-DXT / ETC1 / PVRTC decompression code based on the Squish library and the Oolong %Engine.
-Jack and mushroom models from the realXtend project. (http://www.realxtend.org)
-Ninja model and terrain, water, smoke, flare and status bar textures from OGRE.
-%Skybox cubemap from http://www.codemonsters.de.
-BlueHighway font from Larabie Fonts.
-Anonymous Pro font by Mark Simonson.
+DXT / ETC1 / PVRTC decompression code based on the Squish library and the Oolong %Engine.<br>
+Jack and mushroom models from the realXtend project. (http://www.realxtend.org)<br>
+Ninja model and terrain, water, smoke, flare and status bar textures from OGRE.<br>
+%Skybox cubemap from http://www.codemonsters.de.<br>
+BlueHighway font from Larabie Fonts.<br>
+Anonymous Pro font by Mark Simonson.<br>
 NinjaSnowWar sounds by Veli-Pekka T&auml;til&auml;.