Form Basics, Introfuction to Grid, Creating a Grid, Using Flexbox and Grid lessons: Remove additional resources and add assignment section

intermediate_html_css/forms/form_basics.md

@@ -520,9 +520,3 @@ The following questions are an opportunity to reflect on key topics in this less
 - [What are the three most common form controls you can use for allowing users to select predefined options?](#selection-elements)
 - [What are the three types of buttons in HTML?](#buttons)
 - [What are the two most challenging aspects of styling forms?](#a-note-on-styling-forms)
-
-### Additional resources
-
-This section contains helpful links to related content. It isn't required, so consider it supplemental.
-
-- [Web.dev's Form Course](https://web.dev/learn/forms/)

intermediate_html_css/grid/creating_a_grid.md

@@ -207,10 +207,3 @@ The following questions are an opportunity to reflect on key topics in this less
 - [How do you set gutters (also known as alleys) in the grid?](#gap)
 - [Describe what happens when you have more content than defined tracks.](#explicit-vs-implicit-grid)
 - [How could you change the size for those undefined tracks?](#explicit-vs-implicit-grid)
-
-### Additional resources
-
-This section contains helpful links to related content. It isn't required, so consider it supplemental.
-
-- The [MDN Basic Concepts of grid layout](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Basic_Concepts_of_Grid_Layout) reviews many of the basics and introduces some additional concepts.
-- Watch this short video on [grid terminology](https://www.youtube.com/watch?v=0m5qgfX2TVQ&ab_channel=PeterSommerhoff) from Peter Sommerhoff.

intermediate_html_css/grid/introduction_to_grid.md

@@ -75,18 +75,18 @@ When reviewing older resources, keep in mind that differences between Flex and G
 
 While some people thought CSS Grid was here to replace Flexbox, you will learn by the end of these lessons that Grid is just another tool for the bag. In fact, not only do each of these modules have their own use cases, but you will also find it helpful to pair Flex and Grid together. But we’ll be covering all of that in the concluding lesson. First you will learn how to actually make a grid!
 
+### Assignment
+
+<div class="lesson-content__panel" markdown="1">
+
+1. Surprise! No assignment! You’ll be learning a lot more throughout the coming lessons so keep going.
+
+</div>
+
 ### Knowledge check
 
 The following questions are an opportunity to reflect on key topics in this lesson. If you can't answer a question, click on it to review the material, but keep in mind you are not expected to memorize or master this knowledge.
 
 - [How can you use Flex to make a two-dimensional layout?](#a-look-back-at-flex)
 - [Why was CSS Grid introduced?](#what-is-grid)
 - [Which CSS layout module would you use to easily make equal sized items in a container?](#what-is-grid)
-
-### Additional resources
-
-This section contains helpful links to related content. It isn't required, so consider it supplemental.
-
-- Watch [Flexbox vs. CSS Grid — Which is Better?](https://www.youtube.com/watch?v=hs3piaN4b5I) for a visual representation of the use cases for Flexbox vs CSS Grid
-- Read CSS Tricks' quick take on the [differences between flex and grid](https://css-tricks.com/quick-whats-the-difference-between-flexbox-and-grid/).
-- Check out [The Story of CSS Grid](https://alistapart.com/article/the-story-of-css-grid-from-its-creators/)

intermediate_html_css/grid/using_flexbox_and_grid.md

@@ -71,9 +71,3 @@ The following questions are an opportunity to reflect on key topics in this less
 - [When might you use Flexbox over Grid?](#content-first-vs-layout-first-design)
 - [When might you use Grid over Flexbox?](#content-first-vs-layout-first-design)
 - [When might you use the two of these tools together?](#combining-flexbox-and-grid)
-
-### Additional resources
-
-This section contains helpful links to related content. It isn't required, so consider it supplemental.
-
-- MDN wrote an in-depth article on the [relationship between Grid and other layout methods](https://developer.mozilla.org/en-US/docs/Web/CSS/CSS_Grid_Layout/Relationship_of_Grid_Layout).