feat: add effect cleanups, add docs (#2)

* docs: update readme

* feat: add cleanup function to effects

* refactor: move peek function to store module

* test: add nested atom check

* docs: add doc comments

* fix: `effect()` type

* refactor: remove divider comment

src/utils/collect.luau

@@ -1,3 +1,7 @@
+--[=[
+	Trigger a garbage collection cycle by allocating a large amount of junk memory
+	and then waiting for the next frame.
+]=]
 local function collect()
 	for _ = 1, 1e4 do
 		local _ = table.create(1e3)

src/utils/count.luau

@@ -1,3 +1,9 @@
+--[=[
+	Counts the number of elements in a table.
+
+	@param object The table to count.
+	@return The number of elements in the table.
+]=]
 local function count(object: any): number
 	local count = 0
 	for _ in next, object do

src/utils/setInterval.luau

@@ -1,5 +1,12 @@
 local RunService = game:GetService("RunService")
 
+--[=[
+	Schedules a function to be called at a fixed interval of `seconds`.
+	
+	@param callback The function to call.
+	@param seconds The interval in seconds.
+	@return A function that cancels the interval.
+]=]
 local function setInterval(callback: () -> (), seconds: number): () -> ()
 	if seconds < 0 then
 		return function() end