Add documentation for bucket sort

[Mahi-korrapati]

This pull request adds a complete and clear documentation file for the Bucket Sort algorithm.
The documentation explains the concept, steps, complexity, and provides a Rust code example aligned with the existing implementation in the repository.

[Mahi-korrapati]

Hello!
I have added detailed documentation for the Bucket Sort algorithm.
Kindly review this PR and let me know if any changes are required.
Thank you for your time.

[alexfertel]

Let's remove this example please.

Suggested change

	## Rust Example
	```rust
	pub fn bucket_sort(arr: &mut [f32]) {
	let n = arr.len();
	let mut buckets: Vec<Vec<f32>> = vec![Vec::new(); n];
	for &value in arr.iter() {
	let index = (value * n as f32) as usize;
	buckets[index.min(n - 1)].push(value);
	}
	for bucket in buckets.iter_mut() {
	bucket.sort_by(|a, b| a.partial_cmp(b).unwrap());
	}
	let mut idx = 0;
	for bucket in buckets {
	for value in bucket {
	arr[idx] = value;
	idx += 1;
	}
	}
	}

[alexfertel]

😅 you removed the whole file...