Clean up certain style choices on website's example documentation (#1616)

Summary:
Pull Request resolved: https://github.com/facebook/yoga/pull/1616

This is based on a few comments earlier in the stack and my own discretion on what should change. But I went through all of the examples and changed the following:

* Only add code tick marks in a few cases where it would make sense. Things like `start` and `end`, `undefined` as a value, etc. There ends up not being that many after this. Previously, any property or value was tick marked even if it was more of a concept than actual code. **I replaced those cases with a link to their respective documentation as I feel like this keeps the indication that this is a keyword without labeling it as code**.
* Any reference to "element" was changed to "node"
* Capitalize words that follow a colon
* Run code examples through prettier for consistent style

Reviewed By: yungsters

Differential Revision: D54816609

fbshipit-source-id: 20ee925cf46bd1c519cc88bab9327321e926ac56

website-next/docs/styling/min-max-width-height.mdx

@@ -6,43 +6,47 @@ import Playground from '@site/src/components/Playground';
 
 # Min/Max Width and Height
 
-These properties set the maximum and minimum size constraints of an element.
+These properties set the maximum and minimum size constraints of a node.
 They have higher priority than all other properties and will always be respected.
 Constraints can be specified as either absolute pixel values or as percentages of their
-parent's size. By default all these constraints are `undefined`.
+[containing block's](https://developer.mozilla.org/en-US/docs/Web/CSS/Containing_block) size. By default all these constraints are `undefined`.
 
 <Playground code={`<Layout config={{useWebDefaults: false}}>
   <Node
     style={{
-      width: 250,
+      width: 200,
       height: 250,
-      padding: 10
+      padding: 10,
     }}>
     <Node style={{margin: 5, height: 25}} />
     <Node
       style={{
         margin: 5,
         height: 100,
-        maxHeight: 25
-      }}/>
+        maxHeight: 25,
+      }}
+    />
     <Node
       style={{
         margin: 5,
         height: 25,
-        minHeight: 50
-      }}/>
+        minHeight: 50,
+      }}
+    />
     <Node
       style={{
         margin: 5,
         height: 25,
-        maxWidth: 25
-      }}/>
+        maxWidth: 25,
+      }}
+    />
     <Node
       style={{
         margin: 5,
         height: 25,
         width: 25,
-        minWidth: 50
-      }}/>
+        minWidth: 50,
+      }}
+    />
   </Node>
 </Layout>`} />