Add JS Foundations to table of contents

Author: CoreyScript

README.md

@@ -12,7 +12,7 @@
     <img src="./images/javascript.png" alt="Logo" width="80" height="80">
   </a>
 
-<h3 align="center">JavaScript: The Advanced Concepts</h3>
+<h1 align="center">JavaScript: The Advanced Concepts</h1>
 
   <p align="center">
     Research to gain a deeper understanding of how JavaScript works under the hood.
@@ -31,21 +31,52 @@
   <summary>Table of Contents</summary>
   <ol>
     <li>
-      <a href="/Foundations.md">JavaScript Foundations</a>
+      <h3><a href="/Foundations.md">JavaScript Foundations</a></h3>
       <ul>
         <li><a href="/Foundations.md/#javascript-engine">JS Engine</a></li>
+        <li><a href="/Foundations.md/#interpreter">Interpreter</a></li>
+        <li><a href="/Foundations.md/#compiler">Compiler</a></li>
+        <li><a href="/Foundations.md/#ecmascript">ECMAScript</a></li>
+        <li><a href="/Foundations.md/#writing-optimised-code">Writing optimised code</a></li>
+        <li><a href="/Foundations.md/#inline-caching">Inline Caching</a></li>
+        <li><a href="/Foundations.md/#hidden-classes">Hidden Classes</a></li>
+        <li><a href="/Foundations.md/#call-stack">Call Stack</a></li>
+        <li><a href="/Foundations.md/#memory-heap">Memory Heap</a></li>
+        <ul>
+            <li><a href="/Foundations.md/#garbage-collection">Garbage Collection</a></li>
+            <li><a href="/Foundations.md/#memory-leaks">Memory Leaks</a></li>
+        </ul>
+        <li><a href="/Foundations.md/#javascript-runtime">JavaScript Runtime</a></li>
+        <ul>
+            <li><a href="/Foundations.md/#web-browser-api">Web Browser API</a></li>
+            <li><a href="/Foundations.md/#the-heap">The Heap</a></li>
+            <li><a href="/Foundations.md/#the-stack">The Stack</a></li>
+            <li><a href="/Foundations.md/#the-web-api-container">The Web API Container</a></li>
+            <li><a href="/Foundations.md/#the-callback-queue">The Callback Queue</a></li>
+            <li><a href="/Foundations.md/#the-event-loop">The Event Loop</a></li>
+        </ul>
+        <li><a href="/Foundations.md/#node.js">Node.js</a></li>
+        <li><a href="/Foundations.md/#lexical-environment">Lexical Environment</a></li>
+        <li><a href="/Foundations.md/#scope">Scope</a></li>
+        <li><a href="/Foundations.md/#execution-context">Execution Context</a></li>
+        <ul>
+            <li><a href="/Foundations.md/#global-execution-context">Global Execution Context</a></li>
+            <li><a href="/Foundations.md/#functional-execution-context">Functional execution context</a></li>
+        </ul>
+        <li><a href="/Foundations.md/#hoisting">Hoisting</a></li>
+        <li><a href="/Foundations.md/#scope-chain">Scope Chain</a></li>
+        <li><a href="/Foundations.md/#this">This</a></li>
+        <li><a href="/Foundations.md/#function-currying">Function Currying</a></li>
+        <li><a href="/Foundations.md/#context-vs-scope">Context vs Scope</a></li>
       </ul>
     </li>
     <li>
-      <a href="#getting-started">Getting Started</a>
+      <h3><a href="#getting-started">Getting Started</a></h3>
       <ul>
         <li><a href="#prerequisites">Prerequisites</a></li>
         <li><a href="#setup">Setup</a></li>
       </ul>
     </li>
-    <li><a href="#contributing">Contributing</a></li>
-    <li><a href="#license">License</a></li>
-    <li><a href="#acknowledgments">Acknowledgments</a></li>
   </ol>
 </details>