Minor updates to Tomb of Anubis-re-Bootes

I have uploaded a small update to the Tomb of Anubis-re-Bootes adventure for Challengers of Vanth. 

1. Several small spelling corrections.
2. Small clarification to Haunted Quicksand with suggestions on how to defeat it or avoid it.
3. Swapped out mummy servants with robot mummies that are much easier to kill but still pesky. 
4. Gave the characters a chance to survive the robodroid guardian's explosion.
5. Made it more clear there was a connection between the control panel and the robodroid - hinting at a way to resolve the encounter without killing all the monsters.
6. Provided more benefits from the Oracle Computer, including new spells, stat increases, etc.