Update google_calendar.md

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Author: sid0309

doc/google_calendar.md

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+# Google calendar
+## We have several google calendars used for several purposes:
+
+[CPP-LAB : all events](https://calendar.google.com/calendar?cid=a21kcmMybWp1MXNkaDJ2dGZiMDZkbjc2ZmtAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ) → for most of the information
+
+[CPP-LAB : courses](https://calendar.google.com/calendar?cid=c3U0bDFkdjk5NDhrbDM2Y3JoazFnOHNmbjhAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ) → only put there events or info that correspond to courses worth attending
+
+[CPP-LAB : Behavioural](https://calendar.google.com/calendar?cid=ajl0bThzY3M4aHBqY2txcGVwcTRldXFrNzhAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ) → to book the testing room and the desktop in it
+
+[CPP-LAB Laptop computer](https://calendar.google.com/calendar?cid=bDluaGw5bnE3cmxmYmpjNjNiZThtc3VtbTRAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ) : → to book the testing laptop
+
+[CPP-LAB : meetings](https://calendar.google.com/calendar/u/0?cid=YTIxZDdmZGJlMTI1ZWJiNWFjNWQ3ZjEyMGM2ZTllMTkyNzQ2MGQzZmQxMmEzMDY4MjMxOTA2NTZiYmVhM2JiYUBncm91cC5jYWxlbmRhci5nb29nbGUuY29t) → to know when are Olivier’s availabilities
+
+[fMRI booking](https://calendar.google.com/calendar/u/0?cid=Y2hzMWE0M3ZjYmxqazlqbjBuMzVnNXJoa3NAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ) → to share our bookings with other CPP-StLuc-MRI-users, in case of needed help or facilitate last minute hours takeover