Added GitHub Pages steps, Automated demo page (#2)

* Testing PHP Rendering workflow
Update php-render.yml, sass-compile.yml, and nibblepoker.scss

* Fixed CWD in PHP workflow
Update php-render.yml

* Removed beautifier step
Update php-render.yml

* Added artifact retrieval
Update php-render.yml and sass-compile.yml

* Attempt 1 to fix broken triggers
Update php-render.yml

* Combined workflows, Screw this noise
Update build-all.yml, php-render.yml, and sass-compile.yml

* Fixed paths for GitHub Pages
Update index.php, intro.php, and sidebar.php

* Removed trash step, Fixed last faulty path
Update build-all.yml and cards.php

htdocs/parts/examples/cards.php

@@ -22,7 +22,7 @@ if (basename(__FILE__) == basename($_SERVER["SCRIPT_FILENAME"])) {
 
         <div class="my-s border r-l bkgd-dark grid d-inline-block">
             <div class="bb">
-                <img src="/img/maki-03.jpg" alt="Hungry Kitty Cat" class="r-r p-s px-l" height="128px">
+                <img src="./img/maki-03.jpg" alt="Hungry Kitty Cat" class="r-r p-s px-l" height="128px">
             </div>
             <div class="bkgd-gray t-center">
                 <p>Hungry Cat</p>

htdocs/parts/intro.php

@@ -7,6 +7,7 @@ if(basename(__FILE__) == basename($_SERVER["SCRIPT_FILENAME"])) {
 global $root_path;
 ?>
 
+<a id="intro"></a>
 <div class="p-xs b r-s bkgd-grid">
     <h2 class="t-w-500 t-size-14">Introduction</h2>
 </div>

htdocs/parts/sidebar.php

@@ -8,9 +8,9 @@ if(basename(__FILE__) == basename($_SERVER["SCRIPT_FILENAME"])) {
 <nav id="sidebar" class="sidebar">
 
     <div class="p-m pt-l">
-        <a href="/" class="no-select">
+        <a href="#intro" class="no-select">
             <img class="logo-sidebar-v2"
-                 src="/img/logo-large-fluent-unshaded.svg"
+                 src="./img/logo-large-fluent-unshaded.svg"
                  alt="Website's logo"
                  draggable="false">
         </a>