When saving, enter the following:
 
ZZ  Z  Z  ######  ######            ######   
ZZ  Z  Z  #       ##   ##           ##   ##  
ZZ ZZZ Z  #       ##   ##    ####   ##   ##  
ZZ ZZZ Z  ####    ######      ##    ######   
ZZ ZZZ Z  #       #####       ##    #####    
 ZZ ZZZ   #       ##  ##      ##    ##  ##   
 ZZ  ZZ   #       ##   ##     ##    ##   ##  
                             ####
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Summary of change:
Add document to category: