Add ed tips and tricks page

ed.md

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+---
+layout: page
+title: EdStem
+nav_order: 5
+published: true
+---
+
+# EdStem Tips and Tricks
+
+[EdStem](https://edstem.org), or Ed for short, is the online course Q&A forum used at UC Berkeley.
+Many TAs know the basic functionality of Ed posts, but here are some lesser known tips and tricks.
+
+## Additional Features
+
+Ed will often have additional (beta) features you can optionally turn on. For example, the Chats feature
+sets up a Slack-like interface with channels so students, TAs, and instructors can talk to each other.
+
+<img src="{{ site.baseurl }}/assets/images/edstem/additional-features.png" width="300px" alt="additional ed features">
+
+## Ping other staff
+
+Ping other staff using @ mentions.
+
+<img src="{{ site.baseurl }}/assets/images/edstem/at-mention.png" width="500px" alt="pinging other staff">
+
+## Bots
+
+Create Ed bots to perform actions in an automated way. For example, you can validate that threads are formatted a certain way, automatically track Ed engagement by students, remind students to follow post guidelines,
+or use AI to answer questions (e.g. [Edison](https://dl.acm.org/doi/abs/10.1145/3641554.3701965)).
+
+<img src="{{ site.baseurl }}/assets/images/edstem/bots.png" width="700px" alt="ed bot">
+
+
+## Callouts
+
+Add callouts when you want to emphasize certain text (e.g. give a warning/danger note).
+
+<img src="{{ site.baseurl }}/assets/images/edstem/callout.png" width="500px" alt="callouts">
+
+## Mark threads as duplicate, decline threads, or lock threads
+
+- Mark threads as duplicate to redirect student to a post that already has the answer they're looking for
+- Decline threads if they don't follow your template
+- Lock threads if the discussion gets heated or if you have a post you don't want comments on (e.g. a course index post)
+
+<img src="{{ site.baseurl }}/assets/images/edstem/duplicate-decline-lock.png" width="300px" alt="mark as duplicate, decline, or lock">
+
+You can write a template message for declining threads in your course settings:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/decline-template.png" width="500px" alt="setup declined thread message">
+
+## Latex
+
+You can write Latex if you need to write mathematical symbols:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/latex-usage.png" width="500px" alt="latex syntax">
+
+<img src="{{ site.baseurl }}/assets/images/edstem/latex-posted.png" width="500px" alt="what latex looks like when rendered">
+
+## Runnable Code Blocks
+
+You can post runnable code blocks with line numbers by clicking the icon circled in red (looks like `< >`):
+
+<img src="{{ site.baseurl }}/assets/images/edstem/runnable-code.png" width="500px" alt="runnable python code block">
+
+## Saved Replies
+
+Find yourself saying the same thing to students over and over again? Use Saved Replies! Set them up in your course settings:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/saved-replies-setup.png" width="500px" alt="setup saved reply">
+
+And then use them when responding:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/saved-replies-usage.png" width="500px" alt="using a saved reply">
+
+## Visible to staff only
+
+Want to talk amongst staff members on Ed without students seeing? Check the "Visible to staff only" box:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/visible-to-staff.png" width="500px" alt="visible to staff checkbox">
+
+## Mark as spoiler
+
+Want to hide some information from students unless they click to open the dropdown menu? Use the Spoiler feature:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/spoiler-usage.png" width="500px" alt="using a spoiler block">
+
+This is what they'll see:
+
+<img src="{{ site.baseurl }}/assets/images/edstem/spoiler-posted.png" width="500px" alt="posted spoiler block">

otter/index.md

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 ---
 layout: page
 title: Otter Grader
-nav_order: 6
+nav_order: 7
 has_toc: true
 has_children: true
 ---

using-github/index.md

@@ -1,7 +1,7 @@
 ---
 layout: page
 title: Using GitHub
-nav_order: 5
+nav_order: 6
 has_children: true
 ---