fix wrong width restriction

Author: eisenwave

docs/bitint.html

@@ -2907,13 +2907,12 @@ <h4 id=dcl.type.simple><a class=para href=#dcl%2etype%2esimple></a>[dcl.type.sim
 <math display=inline>
   <mrow>
     <mn>1</mn>
-    <mo>&lt;</mo>
+    <mo>≤</mo>
     <mi>N</mi>
     <mo>≤</mo>
     <mtext><tt->BITINT_MAXWIDTH</tt-></mtext>
   </mrow>
-</math> (<a href=https://eel.is/c++draft/climits.syn>[climits.syn]</a>)
-or the denoted type is <q><code><h- data-h=kw_type>unsigned</h-> <h- data-h=kw_type>_BitInt</h-></code> of width 1</q>.
+</math> (<a href=https://eel.is/c++draft/climits.syn>[climits.syn]</a>).
 </p></ins-block>
 
 <h4 id=dcl.enum><a class=para href=#dcl%2eenum></a>[dcl.enum]</h4>

src/bitint.cow

@@ -1409,13 +1409,12 @@ The program is ill-formed unless
 \math{
   \mrow{
     \mn{1}
-    \mo{<}
+    \mo{≤}
     \mi{N}
     \mo{≤}
     \mtext{\tt{BITINT_MAXWIDTH}}
   }
-}\iref{climits.syn}
-or the denoted type is \q{\tcode{unsigned _BitInt} of width 1}.
+}\iref{climits.syn}.
 }
 
 \h4(show-number=false){[dcl.enum]}