Update README.md

README.md

@@ -15,3 +15,18 @@ These are notes from the [Linux Basics Course](https://kodekloud.com/p/the-linux
   - [05-Bash-Shell](docs/02-Working-With-Shell-Part-I/05-Bash-Shell.md)
   - [06-Linux-Bash-Shell](docs/02-Working-With-Shell-Part-I/06-Lab-Linux-Bash-Shell.md)
 
+- [03-Linux-Core-Concepts](docs/03-Linux-Core-Concepts)
+
+  - [01-Introduction-to-Shell](docs/03-Linux-Core-Concepts/01-Bobs-first-team-meeting.md)
+  - [02-Basic-Commands](docs/03-Linux-Core-Concepts/02-The-Linux-Kernel.md)
+  - [03-Command-Line-Help](docs/03-Linux-Core-Concepts/03-Working-with-hardware.md)
+  - [04-Lab-Working-With-Shell](docs/03-Linux-Core-Concepts/04-Lab-Linux-Kernel.md)
+  - [05-Bash-Shell](docs/03-Linux-Core-Concepts/05-Linux-Boot-Sequence.md)
+  - [06-Linux-Bash-Shell](docs/03-Linux-Core-Concepts/06-Run-Levels.md)
+  - [07-Lab-Working-With-Shell](docs/03-Linux-Core-Concepts/07-File-Types.md)
+  - [08-Bash-Shell](docs/03-Linux-Core-Concepts/08-Filesystem-Hierarchy.md)
+  - [09-Linux-Bash-Shell](docs/03-Linux-Core-Concepts/09-Lab-Linux-RunLevels-Filesystem-Hierarchy.md)
+
+
+
+