Fix visibility of HelpPrinter constant PATH_TO_EXAMPLES. (#509, 3498dc8)

Referenced in JavaDoc:

warning - #PATH_TO_EXAMPLES (referenced by @value tag) is an unknown reference.

Author: blackwinter

metafacture-flux/src/main/java/org/metafacture/flux/HelpPrinter.java

@@ -50,7 +50,8 @@
  */
 public final class HelpPrinter {
 
-    private static final String PATH_TO_EXAMPLES = "../metafacture-documentation/linksAndExamples.tsv";
+    public static final String PATH_TO_EXAMPLES = "../metafacture-documentation/linksAndExamples.tsv";
+
     private static final Map<String, String[]> EXAMPLES_MAP = new HashMap<>();
 
     private HelpPrinter() {