Update terminology from 'onboarding' to 'mentorship'

Signed-off-by: Tobie Langel <tobie@unlockopen.com>

Author: tobie

CPC-CHARTER.md

@@ -123,7 +123,7 @@ Subject to such policies as may be set by the Board, the CPC is responsible for:
 
 ## Section 6. Responsibilities Delegated to OpenJS Foundation Projects
 
-OpenJS Foundation Projects are self-governing entities. All policies and procedures for interacting with, contributing to and making decisions within a Project are defined, implemented, and documented by that Project’s Governing Body and community during the onboarding process. Specific technical decisions within a Project will be the responsibility of the Project and establishment and implementation of the decision making process will be done within the guidelines as defined by CPC charter. Those Project decisions and responsibilities include but are not limited to:
+OpenJS Foundation Projects are self-governing entities. All policies and procedures for interacting with, contributing to and making decisions within a Project are defined, implemented, and documented by that Project’s Governing Body and community during the mentorship process. Specific technical decisions within a Project will be the responsibility of the Project and establishment and implementation of the decision making process will be done within the guidelines as defined by CPC charter. Those Project decisions and responsibilities include but are not limited to:
 
 * Setting release dates.
 * Release quality standards.