Fix exit_symbol() requirement of bitstream conformance

Author: chai51

docs/index.html

@@ -32868,7 +32868,7 @@ <h4 id="exit-process-for-symbol-decoder">Exit process for symbol decoder</h4>
 <p>It is a requirement of bitstream conformance that SymbolMaxBits is greater than or
 equal to -14 whenever this process is invoked.</p>
 
-<p>The variable trailingBitPosition is set equal to get_position() - Min(15, SymbolMaxBits+15).</p>
+<p>The variable trailingBitPosition is set equal to get_position() - Min(14, SymbolMaxBits+14).</p>
 
 <p>The bitstream position indicator is advanced by Max(0,SymbolMaxBits).
 (This skips over any trailing bits that have not already been read during symbol decode.)</p>