Changed camelCase to snake_case

docs/memory-management.txt

@@ -3,18 +3,48 @@ Memory Management
 
 Memory management is split into three layers: physical, virtual & the heap.
 
+pmm.h
+-----
 The **physical memory manager** (PMM) is responsible for allocating physical
 memory. It gives `pmm_*` functions. The `pmm_allocPage()` function allocates a
 4kB page frame and retuns its **physical address**.
 
+vmm.h
+-----
 The **virtual memory manager** (VMM) is responsible for allocating virtual
 memory. It provides `vmm_*` functions. The `vmm_alloc()` function takes in a
 number of 4kB pages to allocate and returns the **virtual address** of the
 first page. Userspace can interface with the VMM using the `mmap()` and
 `munmap()` syscalls.
 
-**The heap** is an area of memory that both kernel and user space have. 
-Kernel space uses the `kalloc()` and it's derivative functions for the heap.
-User space may use the `brk()` and `sbrk()` syscalls to grow and shrink the
-heap.
+kmalloc.h
+---------
+The `kmalloc.h` header provides memory management functions for kernel memory.
+
+`void* kmalloc(size_t size)`
+****************************
+**Parameters**
+* `size_t size` - Number of bytes to allocate
+
+**Descriptions**
+This function allocates `size` bytes of contiguous memory.
+
+**Returns**
+A pointer to allocated memory or NULL.
+
+`void* kzalloc(size_t size)`
+****************************
+**Parameters**
+* `size_t size` - Number of bytes to allocate
+
+**Description**
+This function allocates `size` bytes of contiguous, zeroed-out memory.
+
+**Returns**
+A pointer to allocated memory or NULL.
+
+`void* kcalloc(size_t count, size_t size)`
+******************************************
+**Parameters**
+* `size_t count` -