Revised alt text for photos on Learn Tutorial Guide page

Author: katlich112358

src/templates/pages/learn/tutorial-guide.hbs

@@ -40,7 +40,7 @@ slug: learn/
         {{#i18n "writing-a-tutorial-how-prepare-2"}}{{/i18n}}<a href="https://github.com/mayaman/p5js-website/blob/master/src/templates/pages/learn/test-tutorial.hbs">{{#i18n "writing-a-tutorial-how-prepare-3"}}{{/i18n}}</a>
         {{#i18n "writing-a-tutorial-how-prepare-4"}}{{/i18n}}
       </p>
-      <img src="{{assets}}/learn/tutorial-guide/images/screenshot-1.png" alt="Screenshot">
+      <img src="{{assets}}/learn/tutorial-guide/images/screenshot-1.png" alt="Screenshot of example header for the file referenced in previous paragraph.">
 
       <p>
         {{#i18n "writing-a-tutorial-how-prepare-5"}}{{/i18n}}<a href="{{root}}/learn/">{{#i18n "writing-a-tutorial-how-prepare-6"}}{{/i18n}}</a>
@@ -54,7 +54,7 @@ slug: learn/
       <p>
         {{#i18n "writing-a-tutorial-how-prepare-11"}}{{/i18n}}
       </p>
-      <img src="{{assets}}/learn/tutorial-guide/images/screenshot-2.png" alt="Screenshot">
+      <img src="{{assets}}/learn/tutorial-guide/images/screenshot-2.png" alt="Screenshot of a GitHub page showing the file path referenced in previous paragraph.">
       <p>
         {{#i18n "writing-a-tutorial-how-prepare-12"}}{{/i18n}}
       </p>
@@ -84,16 +84,16 @@ Your code here!
       <p>
         {{#i18n "writing-a-tutorial-iframe-1"}}{{/i18n}}
       </p>
-      <img src="https://github.com/tegacodes/p5.js-education/raw/master/images/iframe-2.jpg" alt="tutorialFileStructure" width="600">
+      <img src="https://github.com/tegacodes/p5.js-education/raw/master/images/iframe-2.jpg" alt="Illustration of a p5.js iframe embedded within a HTML page." width="600">
 
       <p>
         {{#i18n "writing-a-tutorial-iframe-2"}}{{/i18n}}
       </p>
 
-      <img src="{{assets}}/learn/tutorial-guide/images/screenshot-3.png" alt="Screenshot">
+      <img src="{{assets}}/learn/tutorial-guide/images/screenshot-3.png" alt="Screenshot of a GitHub page showing an example file path for tutorial photos.">
 
 <p>{{#i18n "writing-a-tutorial-iframe-3"}}{{/i18n}}</p>
-<img src="{{assets}}/learn/tutorial-guide/images/screenshot-4.png" alt="Screenshot">
+<img src="{{assets}}/learn/tutorial-guide/images/screenshot-4.png" alt="Screenshot of a GitHub page showing an example of an embed.html file for a tutorial sketch.">
 
 <p>{{#i18n "writing-a-tutorial-iframe-4"}}{{/i18n}}</p>
 <p>{{#i18n "writing-a-tutorial-iframe-5"}}{{/i18n}}</p>