Fix some typos

helpers/sass_helpers.rb

@@ -335,8 +335,8 @@ module SassHelpers
       end
 
     content_tag :tr, [
-      content_tag(:th, name, class: 'name'),
-      content_tag(:th, status_text, class: 'status'),
+      content_tag(:td, name, class: 'name'),
+      content_tag(:td, status_text, class: 'status'),
     ], class: status ? 'supported' : 'unsupported'
   end
 

source/documentation/interpolation.html.md.erb

@@ -106,8 +106,8 @@ interpolation in SassScript always returns an unquoted string.
 <% fun_fact do %>
   Interpolation is useful for injecting values into strings, but other than that
   it's rarely necessary in SassScript expressions. You definitely *don't* need
-  it to just use a variable in a property value. Instead of writing `color:
-  #{$accent}`, you can just write `color: $accent`!
+  it to just use a variable in a property value. Instead of writing
+  `color: #{$accent}`, you can just write `color: $accent`!
 <% end %>
 
 <% heads_up do %>

source/documentation/syntax.html.md

@@ -2,7 +2,7 @@
 title: Syntax
 introduction: >
   Sass supports two different syntaxes. Each one can import the other, so it's
-  up to your and your team which one to choose.
+  up to you and your team which one to choose.
 ---
 
 ## SCSS

source/documentation/variables.html.md.erb

@@ -33,7 +33,7 @@ variable, just include it in a value.
 
 <% heads_up do %>
   CSS has [variables of its own][], which are totally different than Sass
-  Lvariables. Know the differences!
+  variables. Know the differences!
 
   [variables of its own]: ../style-rules/declarations#custom-properties