Move normalization presentation to rdbms sources (fixes GH-202)

Author: shorodilov

src/pres/normalization/index.html renamed to src/rdbms/_presentations/normalization.html

@@ -440,8 +440,8 @@ <h3>Requirements</h3>
           <caption>Player Inventory</caption>
           <thead>
           <tr id="table--1nf__username-item_type">
-            <th>username</th>
-            <th>item_type</th>
+            <th class="primary-key">username</th>
+            <th class="primary-key">item_type</th>
             <th>item_quantity</th>
           </tr>
           </thead>

webpack.config.js

@@ -21,7 +21,7 @@ const config = {
     plugins: [
         new MiniCSSExtractPlugin({filename: "css/main.min.css"}),
         new HTMLWebpackPlugin({
-            template: path.resolve(BASE_DIR, "pres", "normalization", "index.html"),
+            template: path.resolve(BASE_DIR, "rdbms", "_presentations", "normalization.html"),
             filename: path.resolve(BUILD_DIR, "normalization", "index.html")
         }),
     ],