example.html: remove extra whitespace

[XhmikosR]

If we don't pass class to the placeholder shortcode, this resulted in two spaces before the alt attribute:

{{< example >}}
{{< placeholder width="64" height="64" >}}
{{< /example >}}

<img src="..."  alt="...">

Need to check if this causes any issues.

Preview: https://deploy-preview-32143--twbs-bootstrap.netlify.app/

[XhmikosR]

All right, I tested this and these are the diffs:

main:

 docs/5.0/components/card/index.html | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/docs/5.0/components/card/index.html b/docs/5.0/components/card/index.html
index 4a80868..cca48e5 100644
--- a/docs/5.0/components/card/index.html
+++ b/docs/5.0/components/card/index.html
@@ -1018,7 +1018,7 @@ Note that content should not be larger than the height of the image. If content
 </div><div class="highlight"><pre class="chroma"><code class="language-html" data-lang="html"><span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;card mb-3&#34;</span> <span class="na">style</span><span class="o">=</span><span class="s">&#34;max-width: 540px;&#34;</span><span class="p">&gt;</span>
   <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;row g-0&#34;</span><span class="p">&gt;</span>
     <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;col-md-4&#34;</span><span class="p">&gt;</span>
-      <span class="p">&lt;</span><span class="nt">img</span> <span class="na">src</span><span class="o">=</span><span class="s">&#34;...&#34;</span>  <span class="na">alt</span><span class="o">=</span><span class="s">&#34;...&#34;</span><span class="p">&gt;</span>
+      <span class="p">&lt;</span><span class="nt">img</span> <span class="na">src</span><span class="o">=</span><span class="s">&#34;...&#34;</span> <span class="na">alt</span><span class="o">=</span><span class="s">&#34;...&#34;</span><span class="p">&gt;</span>
     <span class="p">&lt;/</span><span class="nt">div</span><span class="p">&gt;</span>
     <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;col-md-8&#34;</span><span class="p">&gt;</span>
       <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;card-body&#34;</span><span class="p">&gt;</span>

v4-dev-xmr-hugo:

 docs/4.5/components/card/index.html         | 2 +-
 docs/4.5/components/media-object/index.html | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/4.5/components/card/index.html b/docs/4.5/components/card/index.html
index 8f92677..bab82ac 100644
--- a/docs/4.5/components/card/index.html
+++ b/docs/4.5/components/card/index.html
@@ -918,7 +918,7 @@ Note that content should not be larger than the height of the image. If content
 </div><div class="highlight"><pre class="chroma"><code class="language-html" data-lang="html"><span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;card mb-3&#34;</span> <span class="na">style</span><span class="o">=</span><span class="s">&#34;max-width: 540px;&#34;</span><span class="p">&gt;</span>
   <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;row no-gutters&#34;</span><span class="p">&gt;</span>
     <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;col-md-4&#34;</span><span class="p">&gt;</span>
-      <span class="p">&lt;</span><span class="nt">img</span> <span class="na">src</span><span class="o">=</span><span class="s">&#34;...&#34;</span>  <span class="na">alt</span><span class="o">=</span><span class="s">&#34;...&#34;</span><span class="p">&gt;</span>
+      <span class="p">&lt;</span><span class="nt">img</span> <span class="na">src</span><span class="o">=</span><span class="s">&#34;...&#34;</span> <span class="na">alt</span><span class="o">=</span><span class="s">&#34;...&#34;</span><span class="p">&gt;</span>
     <span class="p">&lt;/</span><span class="nt">div</span><span class="p">&gt;</span>
     <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;col-md-8&#34;</span><span class="p">&gt;</span>
       <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;card-body&#34;</span><span class="p">&gt;</span>
diff --git a/docs/4.5/components/media-object/index.html b/docs/4.5/components/media-object/index.html
index a22d092..047bc68 100644
--- a/docs/4.5/components/media-object/index.html
+++ b/docs/4.5/components/media-object/index.html
@@ -361,7 +361,7 @@
 
     <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;media mt-3&#34;</span><span class="p">&gt;</span>
       <span class="p">&lt;</span><span class="nt">a</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;mr-3&#34;</span> <span class="na">href</span><span class="o">=</span><span class="s">&#34;#&#34;</span><span class="p">&gt;</span>
-        <span class="p">&lt;</span><span class="nt">img</span> <span class="na">src</span><span class="o">=</span><span class="s">&#34;...&#34;</span>  <span class="na">alt</span><span class="o">=</span><span class="s">&#34;...&#34;</span><span class="p">&gt;</span>
+        <span class="p">&lt;</span><span class="nt">img</span> <span class="na">src</span><span class="o">=</span><span class="s">&#34;...&#34;</span> <span class="na">alt</span><span class="o">=</span><span class="s">&#34;...&#34;</span><span class="p">&gt;</span>
       <span class="p">&lt;/</span><span class="nt">a</span><span class="p">&gt;</span>
       <span class="p">&lt;</span><span class="nt">div</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;media-body&#34;</span><span class="p">&gt;</span>
         <span class="p">&lt;</span><span class="nt">h5</span> <span class="na">class</span><span class="o">=</span><span class="s">&#34;mt-0&#34;</span><span class="p">&gt;</span>Media heading<span class="p">&lt;/</span><span class="nt">h5</span><span class="p">&gt;</span>