[cssom] Typo

Author: zcorpan

cssom/Overview.bs

@@ -190,7 +190,7 @@ by the concatenation of, for each character of the identifier:
 
 <ul>
  <li>If the character is NULL (U+0000), then the REPLACEMENT CHARACTER (U+FFFD)
- <a>escaped as a code point</a>.
+ <a>escaped as code point</a>.
  <li>If the character is in the range [\1-\1f] (U+0001 to U+001F) or is U+007F, then the character
  <a>escaped as code point</a>.
  <li>If the character is the first character and is in the range \[0-9]
@@ -219,7 +219,7 @@ below to each character of the given string, followed by
 
 <ul>
  <li>If the character is NULL (U+0000), then the REPLACEMENT CHARACTER (U+FFFD)
- <a>escaped as a code point</a>.
+ <a>escaped as code point</a>.
  <li>If the character is in the range [\1-\1f] (U+0001 to U+001F) or is U+007F, the character
  <a>escaped as code point</a>.
  <li>If the character is '"' (U+0022) or "<code>\</code>"