[AI] Address minor editorial issues in FOCUS 1.3

[ijurica]

Detailed Description

Address minor editorial issues in FOCUS 1.3:

• Supported Feature: Contract Commitments
  • Replace: “FOCUS supports the tracking of commitments made via contractual agreements between a provider and a customer.”
  • With: “FOCUS supports the tracking of commitments made via contractual agreements between a service provider and a customer.”
• Invoice Handling Attribute
  • Remove the leftover text "None" in the Exception section.

Definition of Done

• All listed minor editorial issues have been addressed

[shawnalpay]

Completed via PR #1632 and #1633. Closing!