Fix formatting issue

src/data/roadmaps/docker/content/100-introduction/index.md

@@ -1,3 +1,3 @@
-## What is Docker?
+# What is Docker?
 
 Docker is an open-source platform that automates the deployment, scaling, and management of applications by isolating them into lightweight, portable containers. Containers are standalone executable units that encapsulate all necessary dependencies, libraries, and configuration files required for an application to run consistently across various environments.

src/data/roadmaps/docker/content/110-docker-cli/101-containers.md

@@ -1,4 +1,4 @@
-## Containers?
+# Containers
 
 Containers can be thought of as lightweight, stand-alone, and executable software packages that include everything needed to run a piece of software, including the code, runtime, libraries, environment variables, and config files. Containers isolate software from its surroundings, ensuring that it works uniformly across different environments.