Language update suggestions for basic HTML curriculum (#16697)

* Language update suggestions for basic HTML curriculum

* fix: Changes based on review feedback

seed/challenges/01-responsive-web-design/basic-html-and-html5.json

@@ -183,8 +183,8 @@
       "description": [
         "Over the next two sections, we'll build an HTML5 app that will look something like this:",
         "<a href=\"https://i.imgur.com/jOc1JF1.png\" target=\"_blank\" data-lightbox=\"img-enlarge\"><img class=\"img-responsive\" src=\"https://i.imgur.com/jOc1JF1.png\" title=\"Click to enlarge\" alt=\"A screen shot of our finished Cat Photo App\"></a>",
-        "The <code>h2</code> element you enter will create an <code>h2</code> element on the website.",
+        "The <code>h2</code> element you will be adding in this step will add a level two heading to the web page.",
-        "This element tells the browser about the structure of your website. <code>h1</code> elements are often used for main headings, while <code>h2</code> elements are generally used for subheadings. There are also <code>h3</code>, <code>h4</code>, <code>h5</code> and <code>h6</code> elements to indicate different and new sections.",
+        "This element tells the browser about the structure of your website. <code>h1</code> elements are often used for main headings, while <code>h2</code> elements are generally used for subheadings. There are also <code>h3</code>, <code>h4</code>, <code>h5</code> and <code>h6</code> elements to indicate different levels of subheadings.",
         "<hr>",
         "Add an <code>h2</code> tag that says \"CatPhotoApp\" to create a second HTML <code>element</code> below your \"Hello World\" <code>h1</code> element."
       ],
@@ -249,8 +249,8 @@
       "id": "bad87fee1348bd9aedf08801",
       "title": "Inform with the Paragraph Element",
       "description": [
-        "<code>p</code> elements are the preferred element for normal-sized paragraph text on websites. P is short for \"paragraph\".",
+        "<code>p</code> elements are the preferred element for paragraph text on websites. <code>p</code> is short for \"paragraph\".",
-        "You can create a <code>p</code> element like this:",
+        "You can create a paragraph element like this:",
         "<code>&#60;p&#62;I'm a p tag!&#60;/p&#62;</code>",
         "<hr>",
         "Create a <code>p</code> element below your <code>h2</code> element, and give it the text \"Hello Paragraph\"."
@@ -376,9 +376,9 @@
       "id": "bad87fee1348bd9aedf08802",
       "title": "Uncomment HTML",
       "description": [
-        "Commenting is a way that you can leave comments within your code without affecting the code itself.",
+        "Commenting is a way that you can leave comments for other developers within your code without affecting the resulting output that is displayed the the end user.",
         "Commenting is also a convenient way to make code inactive without having to delete it entirely.",
-        "You can start a comment with <code>&#60;!--</code> and end a comment with <code>--&#62;</code>",
+        "Comments in HTML starts with <code>&#60;!--</code>, and ends with a <code>--&#62;</code>",
         "<hr>",
         "Uncomment your <code>h1</code>, <code>h2</code> and <code>p</code> elements."
       ],
@@ -448,7 +448,7 @@
         "Remember that in order to start a comment, you need to use <code>&#60;!--</code> and to end a comment, you need to use <code>--&#62;</code>",
         "Here you'll need to end the comment before your <code>h2</code> element begins.",
         "<hr>",
-        "Comment out your <code>h1</code> element and your <code>p</code> element, but leave your <code>h2</code> element uncommented."
+        "Comment out your <code>h1</code> element and your <code>p</code> element, but not your <code>h2</code> element."
       ],
       "challengeSeed": [
         "<!--",