[kde-doc-english]Spelling error in Kate configuring.docbook

[jon-d]

Hi:

 In  kdebase/doc/kate/configuring.docbook  there is a spelling error:

492c492

Remove Costum:
< <para>Choose the <guibutton>Costum</guibutton> option to choose a custom key 
for the command,
---
Add Custom:
> <para>Choose the <guibutton>Custom</guibutton> option to choose a custom key 
for the command,
496c496

Remove Costum:
< <para>If you chose the <guibutton>Costum</guibutton> option, the key
---
Add Custom:
> <para>If you chose the <guibutton>Custom</guibutton> option, the key