Add alt text to images and fix minor typos

docs/coffee-table-groups/guides/guide-to-hosting-a-coffee-table-group.md

@@ -71,23 +71,23 @@ You may enter the Zoom up to 10 minutes before the start of the event. Do so by
 
 ### Claiming Host and Assigning Co-host
 
-When you arrive in the Zoom, enter the Host Code to claim Host privledges. To do this, navigate to the `#vc-events-admin` channel in Slack and copy the Host Code from the posted Coffee Table group event.
+When you arrive in the Zoom, enter the Host Code to claim Host privileges. To do this, navigate to the `#vc-events-admin` channel in Slack and copy the Host Code from the posted Coffee Table group event.
 
-![Post to the `#vc-events-admin` channel in Slack](../../_assets/images/host-code.png)
+![Post to the `#vc-events-admin` channel in Slack showing an event's name, time and date, location of the event, a host code, and a channel to post the announcement](../../_assets/images/host-code.png)
 
 Back in Zoom, open the Participants tab and click on the 'Claim host' button to input the code.
 
-![A Zoom meeting with no Host](../../_assets/images/hostless-zoom.png)
+![A state of Zoom meeting with no Host. The 'Participants' tab shows options: 'Invite', 'Unmute me', and 'Claim host'](../../_assets/images/hostless-zoom.png)
 
-![Zoom's 'Claim host' modal](../../_assets/images/claim-host.png)
+![Zoom's 'Claim host' modal with input says 'Enter host key'](../../_assets/images/claim-host.png)
 
-Once your Co-host enters the Zoom, hover over their name in the Participants tab and click the 'More ▿' button. Select the 'Make co-host' option to grant them Co-host privledges.
+Once your Co-host enters the Zoom, hover over their name in the Participants tab and click the 'More ▿' button. Select the 'Make co-host' option to grant them Co-host privileges.
 
-![Meg & Joe making faces for your enjoyment](../../_assets/images/assign-co-host.png)
+![The 'More' button dropdown with 'Make co-host option on Zoom'](../../_assets/images/assign-co-host.png)
 
 :::warning
 
-As Zoom Host, if you leave the Zoom, you will end the call for all participants! If you have to leave early, be sure to pass Host privledges to your Co-host by following the steps above and selecting 'Make host' before exiting the Zoom call.
+As Zoom Host, if you leave the Zoom, you will end the call for all participants! If you have to leave early, be sure to pass Host privileges to your Co-host by following the steps above and selecting 'Make host' before exiting the Zoom call.
 
 :::
 
@@ -104,15 +104,15 @@ Then, select the number of breakout rooms you want to create.
 
 Don't forget to click on 'Open all rooms' when you're finished creating them!
 
-![Zoom's Breakout room modal](../../_assets/images/breakout-room-options.png)
+![Zoom's breakout room settings modal shows selected options for 'Allow participants to choose room', 'Allow participants to return to the main session at any time', 'Countdown after closing breakout rooms', and an 'Open all rooms' button.](../../_assets/images/breakout-room-options.png)
 
 ### Ending a Meeting
 
 Once your Coffee Table event has finished, click the 'End' button. This will trigger a pop-up where you'll select 'End meeting for all.'
 
 ![Zoom's 'End' button](../../_assets/images/end-button.png)
 
-![Zoom's options for ending a meeting](../../_assets/images/end-options.png)
+![Zoom's dialog box showing two options: 'End meeting for all' and 'Leave meeting'](../../_assets/images/end-options.png)
 
 :::warning[Caution]
 
@@ -138,7 +138,7 @@ All Virtual Coffee events have automated messages attached to them:
   - In addition, this message is always posted to `#vc-events-admin`. The content of this message includes the event name, time, location (Zoom URL), host code, and in which Slack channel the join link is posted. It also displays a 'Join Event' button for the Coffee Table Hosts and Leader to use.
   - The 'Join Event' buttons in both messages are identical, so a Coffee Table Host or Leader can use either one.
 
-![Post to the `#vc-events` channel in Slack](../../_assets/images/starting-soon-post.png)
+![A post on the `#vc-events` channel in Slack announcing an event that is starting soon](../../_assets/images/starting-soon-post.png)
 
 ## Important Contacts
 

docs/coffees/README.md

@@ -107,7 +107,7 @@ This gives the Hosts time to plan the rooms and assign volunteers to roles for e
 
 Once we have volunteered for a slot it will look something like this in slack:
 
-![Example volunteer poll](../_assets/images/example-volunteer-poll.png)
+![A Slackbot volunteer poll for notetakers and room leaders to indicate their availability to volunteer during the week. Reminder: @channel Hey friends, who's available this week and is up for leading or taking notes? Both days posted below. Click :mem: for notetaker, a :speech_balloon: for room leader--feel free to click both--or an :x: if you aren't available or up for it. ](../_assets/images/example-volunteer-poll.png)
 
 Later that day the MC or Host for the week will post a list of Room Leader / Notetaker pairings.
 

docs/monthly-challenges/facilitators-docs/technical-guidelines.md

@@ -37,12 +37,12 @@ Monthly Challenge team communication and facilitation mostly takes place in Slac
 
 1. Click the down arrow next to the channel's name.
 
-   ![Get channel details](../../_assets/images/get-channel-details.png)
+   ![An open Slack channel with a dropdown menu next to the name to get channel details](../../_assets/images/get-channel-details.png)
 
 2. Click the "Edit" button in the topic section. Fill it in with the name of the challenge and the link to the challenge page on the website.
 3. Click the "Edit" button in the description section. Fill it in with a brief description of the challenge.
 
-   ![Edit channel's topic and description](../../_assets/images/edit-channel-topic-and-description.png)
+   ![Topic and Description sections under the channel name's About Tab](../../_assets/images/edit-channel-topic-and-description.png)
 
 ## Setting Up a Slack Bot
 
@@ -60,12 +60,12 @@ Sometimes, you want to write a customized thread directly from your account, suc
 2. Write your message.
 3. Click the down arrow next to the green "Send" icon.
 
-   ![Slack schedule for later](../../_assets/images/slack-schedule-for-later.png)
+   ![The dropdown menu 'Schedule for later' in a message input on Slack](../../_assets/images/slack-schedule-for-later.png)
 
 4. Select the "Custom time".
 5. Set the day and time. This day and time default to your timezone.
 
-   ![Slack schedule message](../../_assets/images/slack-schedule-message.png)
+   !['Schedule message' options in a message input on Slack to set the day and time of publishing. The available options are 'Later today at 13:00', 'Monday at 09:00', and 'Custom time'](../../_assets/images/slack-schedule-message.png)
 
 ## Updating the Monthly Challenge Pages on the Website