Add docs on bytes

docs/README.md

@@ -19,6 +19,7 @@ Information about Tomo's built-in types can be found here:
 
 - [Arrays](arrays.md)
 - [Booleans](booleans.md)
+- [Bytes](bytes.md)
 - [Channels](channels.md)
 - [Enums](enums.md)
 - [Floating point numbers](nums.md)

docs/bytes.md

@@ -0,0 +1,35 @@
+# Byte Values
+
+Byte values have the type `Byte`, which corresponds to an unsigned 8-bit
+integer ranging from 0 to 255. It is generally recommended to use `Int8`
+instead of `Byte` when performing math operations, however, `Byte`s are used in
+API methods for `Text` and `Path` that deal with raw binary data, such as
+`Path.read_bytes()` and `Text.utf8_bytes()`. Byte literals can be written as an
+integer with a `[B]` suffix, e.g. `255[B]`.
+
+# Byte Methods
+
+## `random`
+
+**Description:**  
+Generates a random byte value in the specified range.
+
+**Usage:**  
+```tomo
+random(min: Byte = Byte.min, max: Byte = Byte.max) -> Byte
+```
+
+**Parameters:**
+
+- `min`: The minimum value to generate (inclusive).
+- `max`: The maximum value to generate (inclusive).
+
+**Returns:**  
+A random byte chosen with uniform probability from within the given range
+(inclusive). If `min` is greater than `max`, an error will be raised.
+
+**Example:**  
+```tomo
+>> Byte.random()
+= 42[B]
+```