Update kernel

storage/README.md

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+# File System Implementation
+
+---
+
+## Nodes
+
+### /storage
+
+- `node.cpp`
+	- **ref_node <=> device**
+	- Handles open/close/read/write operations for the device
+
+<br>
+
+- `ref_node.cpp`
+	- **kernel/user <=> node.cpp**
+	- Maintains the count of references to a node and the seek position
+
+<br>
+
+- `file_descriptor.cpp`
+	- **user <=> ref_node.cpp**
+	- Manages the file descriptor table for user processes
+
+<br>
+
+- `kernel_io.cpp`
+	- **kernel <=> file_descriptor.cpp**
+	- Performs a similar role as `file_descriptor.cpp` but for kernel processes
+
+### /storage/fs
+
+This directory contains the implementations of various file systems, such as `fat32.cpp` and `ustar.cpp`.
+
+### /storage/devices
+
+This directory houses implementations of various devices, including /dev/null, /dev/zero, /dev/random, and more.