fix: resolve repeated terms (like “the the”)

Signed-off-by: Jens Oliver Meiert <jens@meiert.com>

css-conditional-5/font-tech-format-explainer.md

@@ -79,7 +79,7 @@ discussed in this proposal.
 
 ## Proposed Syntax
 
-See "2. Extensions to the the `@supports` rule" in [CSS Conditionals
+See "2. Extensions to the `@supports` rule" in [CSS Conditionals
 5](https://www.w3.org/TR/css-conditional-5/#at-supports-ext).
 
 Examples:
@@ -127,4 +127,4 @@ if (CSS.supports("font-tech(palettes)") {
 } else {
  // Don't include palette override stylesheet, load monochromatic font here.
 }
-```
+```

css-contain-1/Overview.bs

@@ -1400,7 +1400,7 @@ This appendix is <em>informative</em>.
 
  <li>
  List cases where various types of containment do not apply
- at the end rather than the start of of each section,
+ at the end rather than the start of each section,
  to start with the general behavior
  and go into exceptions later.
  </ul>
@@ -1887,4 +1887,4 @@ content-visibility/slot-content-visibility-7-crash.html
 content-visibility/slot-content-visibility-8-crash.html
 content-visibility/slot-content-visibility-9-crash.html
 quote-scoping-empty-style-boundaries.html
-</wpt>
+</wpt>

css-content-3/Overview.bs

@@ -444,7 +444,7 @@ Quotation Mark System: the 'quotes' property</h4>
 
  <dt><dfn>match-parent</dfn>
  <dd>
- Specifies the same [=quotation mark system=] as the the parent.
+ Specifies the same [=quotation mark system=] as the parent.
  In general this is equivalent to inheriting the parent's [=computed value=],
  except that ''quotes/auto'' it resolves
  using the same [=content language=] that the parent used.
@@ -1397,5 +1397,4 @@ No new privacy considerations have been reported on this specification.
 
 <h2 class=no-num id=security>Security Considerations</h2>
 
-No new security considerations have been reported on this specification.
-
+No new security considerations have been reported on this specification.