Add calendar to file

docs/calendar.mdx

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+---
+sidebar_position: 2
+---
+
+import TeamMember, { TeamMembers } from "@site/src/components/TeamMember";
+import Image from "@theme/IdealImage";
+
+# Opensource Working Group
+
+<div class="intro-logo">
+  <img src="/img/logo.svg" alt="logo" />
+</div>
+<br />
+<br />
+
+## Summary
+
+- Develop a series of baseline specifications for Green Software.
+- Ensure that the specifications can be implemented in an interoperable fashion on the computing platforms in widespread use in both developed and developing regions.
+
+### Calendar
+
+Every project runs according to a different cadence, and are open to all members. Links out to slack are member only, for those members that choose to use slack.
+
+| Project Name                                                                                                                                                                                                                                              | Cadence & Calendar Invite                                                                                                                                                                                                                                 |
+| --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| [Carbon Aware SDK](https://greensoftware.foundation/projects/carbon-aware-sdk) - [GitHub](https://github.com/Green-Software-Foundation/carbon-aware-sdk) - [Slack](https://greensoftwarefdn.slack.com/archives/C02JRAV4QEP)                               | Meeting every Tuesday 8am BST, meeting link pinned on Slack channel. Started 21st June 2022 [Calendar invite](https://zoom.us/meeting/tJcuc-uvpjMuEteq2zvXIv_-bngFHFQehHet/ics?icsToken=98tyKuCrrT8oHdydtBGERowqA4-ga-3xiFxbj7dYjU3_FRh6dDy7NOxFFJpZId3Y) |
+| [Awesome Green Software](https://greensoftware.foundation/projects/awesome-green-software) - [GitHub](https://github.com/Green-Software-Foundation/awesome-green-software) - [Slack](https://greensoftwarefdn.slack.com/archives/C02LHAW0KKQ)             | TBC                                                                                                                                                                                                                                                       |
+| [SCI Open Ontology](https://greensoftware.foundation/projects/sci-open-ontology) - [GitHub](https://github.com/Green-Software-Foundation/SCI_open_ontology) - [Slack](https://greensoftwarefdn.slack.com/archives/C02T3NU896X)                            | Meeting every alternative Wed, Started 4th May 2022                                                                                                                                                                                                       |
+| [Carbon CI Pipeline Tooling](https://greensoftware.foundation/projects/carbon-ci-pipeline-tooling) - [GitHub](https://github.com/Green-Software-Foundation/Carbon_CI_Pipeline_Tooling) - [Slack](https://greensoftwarefdn.slack.com/archives/C038YRLD2NN) | Meeting every Friday 3pm BST, meeting link pinned on Slack channel. Started 27th May 2022                                                                                                                                                                 |