Fix several frontmatter issues

collection-pipeline/README.md

@@ -3,7 +3,7 @@ layout: pattern
 title: Collection Pipeline
 folder: collection-pipeline
 permalink: /patterns/collection-pipeline/
-categories: Functional
+categories: Other
 tags:
  - Java
  - Difficulty-Beginner

commander/README.md

@@ -3,7 +3,7 @@ layout: pattern
 title: Commander
 folder: commander
 permalink: /patterns/commander/
-categories: 
+categories: Other
 tags:
  - Java
  - Difficulty-Intermediate

double-buffer/README.md

@@ -1,4 +1,3 @@
-
 ---  
 layout: pattern  
 title: Double Buffer 

game-loop/README.md

@@ -1,4 +1,3 @@
-
 ---  
 layout: pattern  
 title: Game Loop 

master-worker-pattern/README.md

@@ -3,7 +3,7 @@ layout: pattern
 title: Master-Worker
 folder: master-worker-pattern
 permalink: /patterns/master-worker-pattern/
-categories: Centralised Parallel Processing
+categories: Other
 tags:
  - Java
  - Difficulty-Intermediate

sharding/README.md

@@ -1,4 +1,3 @@
-
 ---
 layout: pattern  
 title: Sharding 

spatial-partition/README.md

@@ -3,7 +3,7 @@ layout: pattern
 title: Spatial Partition
 folder: spatial-partition
 permalink: /patterns/spatial-partition/
-categories: Game Programming pattern/Optimisation pattern
+categories: Other
 tags:
  - Java
  - Difficulty-Intermediate

subclass-sandbox/README.md

@@ -1,4 +1,3 @@
-
 ---  
 layout: pattern  
 title: Subclass Sandbox 

trampoline/README.md

@@ -3,7 +3,7 @@ layout: pattern
 title: Trampoline
 folder: trampoline
 permalink: /patterns/trampoline/
-categories: Behavior
+categories: Behavioral
 tags:
  - Java
  - Difficulty-Intermediate