Update lab meeting format and add hybrid meeting info

lab_manual.tex

@@ -735,57 +735,28 @@ \subsection{Authorship guidelines}
 week for group projects.  We have the following regularly scheduled
 meetings:
 
+\marginnote{\texttt{NOTE:} All lab meetings are hybrid: in person in
+  Moore 416 or on Zoom. A Zoom link is provided in the \texttt{\#general}
+  Slack channel at the start of each term, to be used for all lab Zoom
+  meetings unless otherwise noted.}
+
 \begin{itemize}
-  \item \textbf{Lab meetings.} We hold weekly lab meetings
-in our main lab space (Moore Hall, Room 416). During the first week of each term,
-we schedule meeting times via a When2Meet poll shared on Slack. Once finalized,
-the schedule is posted and pinned to the \texttt{\#general} channel.  If you are an active
-lab member, you are expected to attend our lab meetings unless you
-let \director~know that you have a conflict (e.g., a course that meets
-at the same time, another commitment that comes up, etc.). Prioritizing lab meeting attendance helps build
-and maintain a lab culture of collaboration and ongoing participation.
-
-You are also expected to \textbf{present} at one lab meeting per
-term.  Possible presentation topics include (but are not limited to):
-\begin{itemize}
-  \item A half-baked idea you have
-  \item An interesting paper you read
-  \item An interesting tool or software package you learned about
-  \item A tutorial
-  \item A (brief) hackathon
-  \item Something you're confused about that you want help with from
-    other lab members
-  \item A practice presentation (poster, talk, etc.) you'd like
-    feedback on
-  \item Lead a discussion about some topic you think would be of
-    interest to the group
-\end{itemize}
-Each presenter can choose their own format (e.g., informal discussion,
-slide-based presentation, whiteboard-led discussion, interpretive
-song or dance, a creative artwork--- it's up to you!).  We recommend
-that you start off by setting the ``topic and tone'' for
-that day's meeting.  For example:
-\begin{itemize}
-    \item Quickly introduce yourself (name and current role in the
-      lab)
-    \item Say a sentence about what you're going to be doing with your
-      time
-    \item Set any ``ground rules'' you'd like others to follow and
-      make it clear what your ``goals'' are.  For
-      example, do you want people to jump in with questions or random
-      thoughts as they arise?  Take notes and wait until the end to
-      ask more in-depth questions?  What sorts of feedback would be
-      most helpful to you?  What are you hoping people will take away?
-      (Not all of these will apply to every type of presentation or
-      discussion, and there may be other elements you'd like to
-      consider; just use your best judgement!)
-  \end{itemize}
-
-  You can take up to an hour for your presentation or discussion,
-  although taking less time is fine.  You can also share
-  a meeting slot with one or more other lab members.  (A
-  presentation with another lab member still ``counts'' as a
-  presentation for that term.)
+  \item \textbf{Lab meetings.} We hold weekly lab meetings.
+During the first week of each term, we schedule meeting times via a When2Meet poll
+shared on Slack. Once finalized, the schedule is posted and pinned to the
+\texttt{\#general} channel. If you are an active lab member, you are expected to
+attend our lab meetings unless you let \director~know that you have a conflict
+(e.g., a course that meets at the same time, another commitment that comes up,
+etc.). Prioritizing lab meeting attendance helps build and maintain a lab culture
+of collaboration and ongoing participation.
+
+During lab meetings we typically focus on things that project teams want input
+on beyond their immediate group. We also use lab meetings to discuss logistics,
+give feedback on upcoming talks or poster presentations, and/or get project
+updates that might be of interest beyond one project team. Generally we spend
+most of the time going around the room and having each person give a brief
+informal update about something they are working on, planning to work on, or
+thinking about.