Update SUMMARY.md

SUMMARY.md

@@ -3,8 +3,12 @@
 * [Booting](Booting/README.md)
     * [From bootloader to kernel](Booting/linux-bootstrap-1.md)
     * [First steps in the kernel setup code](Booting/linux-bootstrap-2.md)
-	* [Video mode initialization and transition to protected mode](Booting/linux-bootstrap-3.md)
-	* [Transition to 64-bit mode](Booting/linux-bootstrap-4.md)
-	* [Kernel decompression]()
+    * [Video mode initialization and transition to protected mode](Booting/linux-bootstrap-3.md)
+    * [Transition to 64-bit mode](Booting/linux-bootstrap-4.md)
+    * [Kernel decompression]()
+* [Theory]()
+    * [Paging]()
+* [Misc]()
+    * [Write and Submit your first Linux kernel Patch]() 
 * [Useful links](LINKS.md)
 * [Contributors](contributors.md)