Bug 15236: Better translatibility in "Connect biblio.biblionumber to a MARC subfield"

This patch moves html markup out of explanatory sentence in koha2marclinks.tt ("Connect
biblio.biblionumber to a MARC subfield") for better translatability.

To test:

- Apply patch
- Go to Home > Administration < Koha to MARC mapping
  and edit a tag
- Verify that text change makes sense

Signed-off-by: Hector Castro <hector.hecaxmmx@gmail.com>
Rewording Ok for translation purposes

Signed-off-by: Jonathan Druart <jonathan.druart@bugs.koha-community.org>

Signed-off-by: Brendan A Gallagher <brendan@bywatersolutions.com>

koha-tmpl/intranet-tmpl/prog/en/modules/admin/koha2marclinks.tt

@@ -27,7 +27,8 @@
 
 [% IF ( add_form ) %]
 <h1>Connect [% tablename %].[% kohafield %] to a MARC subfield</h1>
-    <p>Choose and validate 1 MARC subfield for <strong>[% tablename %].[% kohafield %]</strong>. That will modify <b>all frameworks</b> which is usually what you need, but you have been warned.</p>
+    <p>Choose and validate 1 MARC subfield for <strong>[% tablename %].[% kohafield %]</strong>.</p>
+    <p><b>Note: </b>All frameworks will be modified which is usually what you need, but you have been warned.</p>
     <fieldset class="rows">
         <ol>
         [% FOR i IN [ 0 .. 9 ] %]