doc: doc expectations on TSC and CommComm members

MemberExpectations.md

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+It is important that members of our leadership groups (TSC, CommComm) act
+in a way that not only complies with the
+[Code of Conduct](https://github.com/nodejs/TSC/blob/master/CODE_OF_CONDUCT.md)
+but that supports the vision, mission and operating principles of the Node.js project.
+
+It is understood that members will have individual opinions and will express
+their individual opinions during discussions within the organization. All
+contributors are expected to be respectful of these different viewpoints,
+and to work collaboratively with one another in a manner that constructively
+elevates all contributors.
+
+When an individual contributor chooses to accept an invitation to participate
+in a leadershp role, they implicitly take on an additional obligation to protect
+and be respectful of both the project and all other contributors.  When
+decisions are made within the established guidelines and policies
+of the project, those in leadership roles have a responsibility to uphold
+and respect the decision even if they disagree with it. This is especially
+important in external communications, for example in social media. Should
+the member be unwilling or unable to do so, then they should
+resign their leadership position. This does not mean that decisions cannot
+be revisited and discussed within the team at a later time.
+
+Members of our leadership groups must also conduct themselves in a
+professional and respectful manner. Some general guidelines include:
+
+- Remediate quickly when you realize you made a mistake. Leaders are human,
+  and they will make mistakes. However they should act swiftly to
+  acknowledge mistakes and correct them.
+- Aim to remediate first and then discuss.  If other members of the
+  team express concerns about actions, acknowledge their concerns by
+  stopping the actions in question and then discuss within the team
+  to come to a common agreement.
+- Treat all community members with respect, consideration, and highest
+  standards of ethical conduct.  
+- Value a diversity of views and opinions. Avoid preferential
+  treatment, and hold everyone (including ourselves) accountable to the same
+  set of standards.  Everyone gets to speak up. 
+- Deal with issues directly with the person in question. Resist complaining
+  about others in the project in a public sphere.
+- Build trust by keeping your promises.
+- Be the model of accountability and leadership. Provide the example of
+  ownership and stewardship that everyone can follow to success.
+- Commit to ongoing development and learning best practices for governing.
+- Criticize ideas rather than people, discussing any concerns in person
+  whenever possible, and taking responsibility for our statements.
+
+While the guidelines above focus primarily on the spaces where
+we participate in official foundation work (GitHub, IRC, conferences),
+it is important to recognize that the public behavior of members also
+reflects on the Node.js project.
+
+If it appears that any member of the project leadership is acting outside
+of the expectations set above please refer to our
+[moderation](https://github.com/nodejs/TSC/blob/master/Moderation-Policy.md)
+policy which outlines the process of making an official complaint.
+
+This policy, and changes to it, are not retroactive.