Eliminates Pod::To::HTML

Which is only used in an author test. Add documentation to the author test indicating this fact. Closes #3615.

Author: JJ

META6.json

@@ -9,7 +9,6 @@
   "auth": "perl6",
   "test-depends": [
     "File::Temp",
-    "Pod::To::HTML:ver<0.6.1+>",
     "Test::META",
     "Perl6::TypeGraph"
   ],
@@ -27,6 +26,7 @@
   "license": "Artistic-2.0",
   "tags": [
     "perl6",
+    "raku",
     "pod6",
     "documentation",
     "reference"

xt/links-not-links.t

@@ -2,9 +2,15 @@
 
 =begin overview
 
-Avoid I<bare> URLs that are not links; URLs should go inside C<L<>> clauses, even if they have no text to link to.
+Avoid I<bare> URLs that are not links; URLs should go inside C<L<>> clauses,
+even if they have no text to link to.
 
-Eliminates as false positives URLs that are output, or those that are included in some IRC log file. URLs in code might still show up as false positive.
+Eliminates as false positives URLs that are output, or those that are
+included in some IRC log file. URLs in code might still show up as false
+positive.
+
+Needs to install independently Pod::To::HTML, which is used only for this
+specific test.
 
 =end overview