perl-html-parser: add license hash

Signed-off-by: Francois Perrad <francois.perrad@gadz.org>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/perl-html-parser/perl-html-parser.hash

@@ -1,3 +1,6 @@
 # retrieved by scancpan from http://cpan.metacpan.org/
 md5    eb7505e5f626913350df9dd4a03d54a8 HTML-Parser-3.72.tar.gz
 sha256 ec28c7e1d9e67c45eca197077f7cdc41ead1bb4c538c7f02a3296a4bb92f608b HTML-Parser-3.72.tar.gz
+
+# computed by scancpan
+sha256 663867028ae22c6f2fabab11238f65f1bf8dd789233b844bead5f6d22220d160 README