Bug 26449: fix web installer typo

The onboarding segment of the web installer contains a small typo
in Step 4: "Importantl:" (should be "Important:").

This patch fixes that.

Test plan: apply the patch and access the web installer, Step 4 of
the onboarding tool should no longer display the typo.

Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>

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

koha-tmpl/intranet-tmpl/prog/en/modules/onboarding/onboardingstep4.tt

@@ -16,7 +16,7 @@
 
                     <p> Item types are used to group related items. Examples of item types might be books, CDs, or DVDs.</p>
                     <p> When adding to your institution's catalog you will create an item of a particular item type.</p>
-                    <p> Importantl: Item types are what you apply circulation rules to. Circulation rules govern how your institution will lend its items: Checkout length, renewal policy, hold policy, etc. For example a circulation rule applied to the DVD item type may enforce a payment of $1.00 for checking out any DVD.</p>
+                    <p> Important: Item types are what you apply circulation rules to. Circulation rules govern how your institution will lend its items: Checkout length, renewal policy, hold policy, etc. For example a circulation rule applied to the DVD item type may enforce a payment of $1.00 for checking out any DVD.</p>
 
                     <form id="createitemform" method="post" action="onboarding.pl">
                     <fieldset class="rows">
@@ -52,4 +52,4 @@
     <script src="[% interface | html %]/[% theme | html %]/js/onboarding.js"></script>
 [% END %]
 
-[% INCLUDE 'installer-intranet-bottom.inc' %]
+[% INCLUDE 'installer-intranet-bottom.inc' %]