Fix errors that caused test failures

Co-authored-by: Eric Sorenson <ahpook@github.com>

Author: ahpook

topics/craftstudio/index.md

@@ -1,6 +1,6 @@
 ---
 display_name: Craftstudio engine
-short_description: Craftstudio is a 2011 engine by Élisée Maurer
+short_description: Craftstudio is a 2011 engine by Élisée Maurer.
 related: minecraft,voxel
 topic: craftstudio
 ---

topics/cube-engine/index.md

@@ -1,6 +1,6 @@
 ---
 display_name: Cube engine
-short_description: Cube engine is a 2001 engine made by Wouter van Oortmerssen
+short_description: Cube engine is a 2001 engine made by Wouter van Oortmerssen.
 aliases: assault-cube-engine
 related: assault-cube
 topic: cube-engine

topics/pyxel/index.md

@@ -1,7 +1,6 @@
 ---
 display_name: Pyxel
-short_description: Internet Archive is a website for a digital collection run by the archive.org group.
-aliases: wayback-machine
+short_description: Pyxel is a retro game engine for python.
 topic: pyxel
 ---
-Internet Archive is a website for a digital collection run by the archive.org group, also responsible for the Wayback Machine software.
+Pyxel is a small open source game engine written in Python for building games evocative of retro gaming consoles.

topics/sauerbraten/index.md

@@ -2,7 +2,7 @@
 display_name: Sauerbraten
 short_description: Sauerbraten engine is a 2004 engine by Wouter van Oortmerssen.
 aliases: cube-2-engine,sauerbraten-engine
-related: Cube-2
+related: cube-2
 topic: sauerbraten
 ---
 Sauerbraten engine or cube 2 engine is a 2004 engine by wouter van Oortmerssen and used by the shooter Cube 2. 

topics/scumm/index.md

@@ -2,6 +2,5 @@
 display_name: Scumm
 short_description: SCUM was a markup language created in 1987.
 topic: scumm
-aliases: script-creation-utility-for-maniac-mansion
 ---
 SCUM was a markup language created in 1987, used for programming point-and-click games.