correct table of contents spelling

src/pages/styles.module.css

@@ -48,7 +48,7 @@
   justify-self: center;
   margin: 1.5vh 0;
   padding: 0;
-  
+
   > ul {
     display: inline-block;
     text-align: center;
@@ -70,4 +70,3 @@
     }
   }
 }
-

table_of_contents.mdx

@@ -0,0 +1,30 @@
+---
+id: table_of_contents
+slug: /tableofcontents
+title: Table of Contents
+description: A table of contents for the home page
+---
+
+## Table of Contents
+
+- [Introduction](./docs)
+- [Quick Start](./docs/quick_start)
+- [Prerequisites](./docs/prerequisites)
+- Project Organization
+  - [Directory Structure](./docs/directory_structure)
+  - [NPM Scripts](./docs/npm_scripts)
+  - [Environment Variables](./docs/environment_variables)
+  - [Continuous Integration / Deployment](./docs/ci_cd)
+- Deployment
+  - [Local Application](./docs/local_application)
+  - [Firebase](./docs/firebase)
+  - [PsiTurk](./docs/psiturk)
+  - [GitHub Pages](./docs/gh_pages)
+- External Tools
+  - [Event Triggers](./docs/event_triggers)
+  - [Prolific](./docs/prolific)
+- Further Reading
+  - [Github Discussions](./docs/github_discussions)
+  - [Version Control](./docs/version_control)
+  - [JavaScript](./docs/javascript)
+- [Trouble Shooting](./docs/troubleshooting)