v1.0.0-beta.6

• add supporting URLs to competencies (#290, #296)
• reword documentation to manage expectations around promotions process (#303)
• add "projects" to "technical leadership" example (#315)
• make "How To Use" page more prominent (#321)
• add competency for "contributes to inclusive organisation culture" (#329)
• clarify that no out of hours work is required (#330)