docs: trim duplicate id

Author: thingsym

docs/index.html

@@ -65,7 +65,7 @@ <h3>Sass</h3>
 
 <div class="column">
 <div class="columns">
-<h4 id="Examples">LibSass</h4>
+<h4>LibSass</h4>
 <pre>
 <code>@import 'node_modules/flexbox-grid-mixins/sass/flexbox-grid-mixins';
 
@@ -84,7 +84,7 @@ <h4 id="Examples">LibSass</h4>
 </code></pre>
 </div>
 <div class="columns">
-<h4 id="Examples">Dart Sass</h4>
+<h4>Dart Sass</h4>
 <pre>
 <code>@use 'node_modules/flexbox-grid-mixins/dart-sass/flexbox-grid-mixins';
 
@@ -272,7 +272,7 @@ <h3>Sass</h3>
 
 <div class="column">
 <div class="columns">
-<h4 id="Examples">LibSass</h4>
+<h4>LibSass</h4>
 <pre>
 <code>@import 'node_modules/flexbox-grid-mixins/sass/flexbox-grid-mixins';
 
@@ -291,7 +291,7 @@ <h4 id="Examples">LibSass</h4>
 </code></pre>
 </div>
 <div class="columns">
-<h4 id="Examples">Dart Sass</h4>
+<h4>Dart Sass</h4>
 <pre>
 <code>@use 'node_modules/flexbox-grid-mixins/dart-sass/flexbox-grid-mixins';
 
@@ -462,7 +462,7 @@ <h2 id="Examples">Examples</h2>
 
 <div class="column">
 <div class="columns">
-    <h3 id="Examples">LibSass</h3>
+    <h3>LibSass</h3>
     <ul>
     <li><a href="example/example.html">Flexbox Grid Mixins Example</a></li>
     <li><a href="example/holy-grail-layout.html">Holy Grail Layout - Using Flexbox Grid Mixins</a></li>
@@ -476,7 +476,7 @@ <h3 id="Examples">LibSass</h3>
 </div>
 <div class="columns">
 
-<h3 id="Examples">Dart Sass</h3>
+<h3>Dart Sass</h3>
 <ul>
 <li><a href="example-dart-sass/example.html">Flexbox Grid Mixins Example</a></li>
 <li><a href="example-dart-sass/holy-grail-layout.html">Holy Grail Layout - Using Flexbox Grid Mixins</a></li>
@@ -518,15 +518,15 @@ <h3>1. Import Flexbox Grid Mixins in Sass/SCSS file</h3>
 
 <div class="column">
 <div class="columns">
-<h4 id="Examples">LibSass</h4>
+<h4>LibSass</h4>
 <pre><code>@import 'flexbox-grid-mixins';</code></pre>
 
 Example: import from node_modules
 
 <pre><code>@import 'node_modules/flexbox-grid-mixins/sass/flexbox-grid-mixins';</code></pre>
 </div>
 <div class="columns">
-<h4 id="Examples">Dart Sass</h4>
+<h4>Dart Sass</h4>
 <pre><code>@use 'flexbox-grid-mixins';</code></pre>
 
 Example: import from node_modules
@@ -540,15 +540,15 @@ <h3>2. Define the grid container</h3>
 
 <div class="column">
 <div class="columns">
-<h4 id="Examples">LibSass</h4>
+<h4>LibSass</h4>
 <pre>
 <code>.grid {
     @include grid();
 }
 </code></pre>
 </div>
 <div class="columns">
-<h4 id="Examples">Dart Sass</h4>
+<h4>Dart Sass</h4>
 <pre>
 <code>.grid {
     @include flexbox-grid-mixins.grid();
@@ -562,7 +562,7 @@ <h3>3. Generate the grid columns</h3>
 
 <div class="column">
 <div class="columns">
-<h4 id="Examples">LibSass</h4>
+<h4>LibSass</h4>
 <pre>
 <code>.grid__col-3 {
     @include grid-col(3);
@@ -573,7 +573,7 @@ <h4 id="Examples">LibSass</h4>
 </code></pre>
 </div>
 <div class="columns">
-<h4 id="Examples">Dart Sass</h4>
+<h4>Dart Sass</h4>
 <pre>
 <code>.grid__col-3 {
     @include flexbox-grid-mixins.grid-col(3);