Add tsc charter related material

tsc/README.md

+# MindSpore Technical Steering Committee
+
+The role and responsibilities of the Technical Steering Committee are defined in
+the [governance](../governance.md) document.
+
+The Technical Steering Committee meets regularly and calls are available for
+any community member to join via https://meet.jit.si/MindSporeTSC on the second
+Thursday every month (UTC+8) from *12:00pm* to *1:00pm* and *4:00pm* to *5:00pm*
+
+Agendas for upcoming meetings and notes from completed meetings are published
+under `meeting-notes` folder.
+
+Elections happen annually. The current members for the term starting Mar 28th,
+2020 are (first name alphabetically ordered):
+* Amos Storkey (University of Edinburgh)
+* Han Xiao (Conic AI Technology)
+* Jianjun Chen (ICBC's Big Data and Artificial Intelligence Lab)
+* Jun Zhu (Tsinghua University)
+* Joel Falcou (University Paris-Saclay)
+* Jin Li (Apulis Technology)
+* Lei Chen (Huawei)	**Chair**
+* Maoguo Gong (Xidian University)
+* Peter Pietzuch (Imperial College London)
+* Shiguang Shan (Key Lab of Intelligent Information Processing of the Institute
+of Computing Technology (ICT), Chinese Academy of Sciences (CAS))
+* Sergei Gorlatch (University of Muenster)
+* Tonghua Su (Harbin Institute of Technology)
+* Xiangyang Li (University of Science and Technology of China)
+* Yonghong Tian (Peking University/Pengcheng Lab)

tsc/meeting-notes/2020-04-16.md

+## Steering Committee Meeting 2020-04-16
+
+### Attendance:
+Will record detailed attendance starting next meeting. The attendance have
+reached quorum with 16 participants in two meetings.
+
+### Agenda:
+1. Roll Call
+2. Community Progress Update
+3. Governance Charter Review
+4. SIG/WG Report Pipeline
+6. Operational Matters
+
+### Action Items:
+* split up the conference schedule table into at least two separate tables
+targeting user and system research (OSDI, ASPOLOS, etc), then TSC members need
+to review the conference tables.
+* start an email thread for online event discussion
+
+### Minutes:
+* http://meeting.mindspore.cn/mindspore-tsc/2020/mindspore_tsc_meeting/2020-04-16-03.50.html
+* http://meeting.mindspore.cn/mindspore-tsc/2020/mindspore_tsc_meeting/2020-04-16-07.58.html
+
+### Recording:
+Will provide recording starting next meeting after explaining the requirement at
+the first meeting.