0.993

Small update, consisting of:

1. New Discord server invite link.

2. Fixed Jury Rig ability (Rigger playbook) to prevent exploitation of the modify downtime activity; further, this new wording of the ability highlights the fiction of the McGuyver archetype much more succinctly. EDIT: added (or tools). Interpret as desired.

3. Replaced Quick Study (Snake playbook) with Provocateur to prevent exploitation of the XP system; further, this new ability highlights how letting a Snake get "under your skin" leads to unwanted attention.

Still to come:

• Playbook and special item details. 
• Sample chemicals, special plans, etc.