diff --git a/README.md b/README.md
index 0828396..58b9894 100644
--- a/README.md
+++ b/README.md
@@ -25,13 +25,17 @@ Alcyone is written in a subset of C++11 with selected features from modern stand
 **NOTE:** Mutexes/pushlocks are used when it is absolutely necessary. 
 
 ### Alcyone Core Source Structure:
-- NTOSKRNL: Alcyone kernel.
-- NTLDR: Alcyone bootloader
-- HAL: Hardware Abstraction Layer.
-- BUS: Bus driver[PCIE/ACPI/HDAudio/USB...]
-- DRIVER: Device driver[Network/GPU/...]
+- SDK: Alcyone SDK
+- NTOSKRNL: Alcyone kernel
+- BOOT: Alcyone boot manager and boot loader
+- HAL: Hardware Abstraction Layer
+- BUS: Bus driver (PCIe, ACPI, HDAudio, USB, ...)
+- DRIVER: Device driver (Network, GPU, ...)
 - XDDM: Components related to Display Driver Model
 
+### SDK Source Directory Structure:
+- CRT: C RunTime
+
 ### Kernel Source Directory Structure:
 - ALPC: Asynchronous Local Procedure Call
 - CC: Cache Controller