localize 404 page; allow Markdown at more places; clickable feature icons (#184)

* allow Markdown in clients (sub)title

* localize 404 page

* add Markdown support for recent posts title

* allow Markdown in see_more section strings

* allow Markdown in features names

* make feature icons clickable (hyperlinks)

* allow Markdown in credits strings; better bootstrapious link

* make see_more section more flexible:

avoid Hugo error(s) when `params.see_more.link_url` or `params.see_more.link_text` aren't defined

* rename `link` key into `url` to be consistent:

- since in the client YAML files the respective key is names `url`, I guess
  I should stick to that.

- besides I've removed the one `#` I've specified as the URL in
  `data/features/webdesign.yaml`; originally that was intended as a "visual"
  hint that now it is easily possible to make the features clickable. but I
  guess that's not really necessary, if not even irritating.

* layouts: remove double logo from 404

the changes in this commit are identical with timmn's commit 33ad328776eeb90f6d6793f7036fcb3338fb5155

* rename string  to

* translate remaining Catalan 404 strings

* improve documentation of feature YAML files

6 files changed, 37 insertions, 30 deletions

diff --git a/layouts/404.html b/layouts/404.html
index c4bab21..5f9be21 100644
--- a/layouts/404.html
+++ b/layouts/404.html
@@ -20,16 +20,10 @@
 
                     <div class="box">
 
-                        <p class="text-center">
-                            <a href="{{ .Site.BaseURL }}">
-                                <img src="{{ .Site.Params.logo }}" alt="{{ .Title }} logo">
-                            </a>
-                        </p>
-
-                        <h3>We are sorry - this page is not here anymore</h3>
-                        <h4 class="text-muted">Error 404 - Page not found</h4>
+                        <h3>{{ i18n "404Message" | markdownify }}</h3>
+                        <h4 class="text-muted">{{ i18n "404Error" | markdownify }}</h4>
 
-                        <p class="buttons"><a href="{{ .Site.BaseURL }}" class="btn btn-template-main"><i class="fas fa-home"></i> Go to Homepage</a>
+                        <p class="buttons"><a href="{{ .Site.BaseURL }}" class="btn btn-template-main"><i class="fas fa-home"></i> {{ i18n "404NavHome" | markdownify }}</a>
                         </p>
                     </div>
 
diff --git a/layouts/partials/clients.html b/layouts/partials/clients.html
index a012367..fd68aeb 100644
--- a/layouts/partials/clients.html
+++ b/layouts/partials/clients.html
@@ -6,11 +6,11 @@
         <div class="row">
             <div class="col-md-12">
                 <div class="heading text-center">
-                    <h2>{{ .Site.Params.clients.title }}</h2>
+                    <h2>{{ .Site.Params.clients.title | markdownify }}</h2>
                 </div>
 
                 <p class="lead">
-                  {{ .Site.Params.clients.subtitle }}
+                  {{ .Site.Params.clients.subtitle | markdownify }}
                 </p>
 
                 <ul class="owl-carousel customers">
diff --git a/layouts/partials/features.html b/layouts/partials/features.html
index 9260d3f..f41f2a1 100644
--- a/layouts/partials/features.html
+++ b/layouts/partials/features.html
@@ -4,23 +4,29 @@
 <section class="bar background-white">
     <div class="container">
         {{ range $index, $element := sort .Site.Data.features "weight" }}
-		{{ if eq (mod $index 3) 0 }}
-		<div class="col-md-12">
+        {{ if eq (mod $index 3) 0 }}
+        <div class="col-md-12">
             <div class="row">
-		{{ end }}
-				<div class="col-md-4">
+        {{ end }}
+                <div class="col-md-4">
                     <div class="box-simple">
-                        <div class="icon">
-                            <i class="{{ .icon }}"></i>
-                        </div>
-                        <h3>{{ $element.name }}</h3>
+                        {{ with $element.url }}
+                        <a href="{{ $element.url }}">
+                        {{ end }}
+                            <div class="icon">
+                                <i class="{{ .icon }}"></i>
+                            </div>
+                        {{ with $element.url }}
+                        </a>
+                        {{ end }}
+                        <h3>{{ $element.name | markdownify }}</h3>
                         <p>{{ $element.description | markdownify }}</p>
                     </div>
                 </div>
-		{{ if or (eq (mod $index 3) 2) (eq $index (sub (len $.Site.Data.features) 1 )) }}
-			</div>
-		</div>
-		{{ end }}
+        {{ if or (eq (mod $index 3) 2) (eq $index (sub (len $.Site.Data.features) 1 )) }}
+            </div>
+        </div>
+        {{ end }}
         {{ end }}
     </div>
 </section>
diff --git a/layouts/partials/footer.html b/layouts/partials/footer.html
index d830678..c7a880d 100644
--- a/layouts/partials/footer.html
+++ b/layouts/partials/footer.html
@@ -76,10 +76,10 @@ _________________________________________________________ -->
             <p class="pull-left">{{ .Site.Params.copyright | safeHTML }}</p>
             {{ end }}
             <p class="pull-right">
-              {{ i18n "templateBy" }} <a href="http://bootstrapious.com/free-templates">Bootstrapious</a>.
+              {{ i18n "templateBy" | markdownify }} <a href="https://bootstrapious.com/p/universal-business-e-commerce-template">Bootstrapious</a>.
               <!-- Not removing this link is part of the licence conditions of the template. Thanks for understanding :) -->
 
-              {{ i18n "portedBy" }} <a href="https://github.com/devcows/hugo-universal-theme">DevCows</a>
+              {{ i18n "portedBy" | markdownify }} <a href="https://github.com/devcows/hugo-universal-theme">DevCows</a>.
             </p>
         </div>
     </div>
diff --git a/layouts/partials/recent_posts.html b/layouts/partials/recent_posts.html
index c46f959..2e4eba2 100644
--- a/layouts/partials/recent_posts.html
+++ b/layouts/partials/recent_posts.html
@@ -5,7 +5,7 @@
 
         <div class="col-md-12">
             <div class="heading text-center">
-                <h2>{{ .Site.Params.recent_posts.title }}</h2>
+                <h2>{{ .Site.Params.recent_posts.title | markdownify }}</h2>
             </div>
 
             <p class="lead">
diff --git a/layouts/partials/see_more.html b/layouts/partials/see_more.html
index 08301c1..437d9d8 100644
--- a/layouts/partials/see_more.html
+++ b/layouts/partials/see_more.html
@@ -7,13 +7,20 @@
             <div class="col-md-12">
                 <div class="icon icon-lg"><i class="{{ .Site.Params.see_more.icon }}"></i>
                 </div>
-                <h3 class="text-uppercase">{{ .Site.Params.see_more.title }}</h3>
-                <p class="lead">{{ .Site.Params.see_more.subtitle }}</p>
+                <h3 class="text-uppercase">{{ .Site.Params.see_more.title | markdownify }}</h3>
+                <p class="lead">{{ .Site.Params.see_more.subtitle | markdownify }}</p>
                 <p class="text-center">
-                    <a href="{{ .Site.Params.see_more.link_url }}" class="btn btn-template-transparent-black btn-lg">{{ .Site.Params.see_more.link_text }}</a>
+                    {{ with .Site.Params.see_more.link_url }}
+                    <a href="{{ . }}" class="btn btn-template-transparent-black btn-lg">
+                    {{ end }}
+                        {{ with .Site.Params.see_more.link_text }}
+                        {{ . | markdownify }}
+                        {{ end }}
+                    {{ with .Site.Params.see_more.link_url }}
+                    </a>
+                    {{ end }}
                 </p>
             </div>
-
         </div>
     </div>
 </section>