Updated the content of language-specific readme files and package-level documentation comments.

java/src/main/java/io/nayuki/qrcodegen/package-info.java

@@ -10,6 +10,7 @@
  *   <li><p>Significantly shorter code but more documentation comments compared to competing libraries</p></li>
  *   <li><p>Supports encoding all 40 versions (sizes) and all 4 error correction levels, as per the QR Code Model 2 standard</p></li>
  *   <li><p>Output format: Raw modules/pixels of the QR symbol</p></li>
+ *   <li><p>Detects finder-like penalty patterns more accurately than other implementations</p></li>
  *   <li><p>Encodes numeric and special-alphanumeric text in less space than general text</p></li>
  *   <li><p>Open-source code under the permissive MIT License</p></li>
  * </ul>