refactor: constructors, update docs

- NewCustomTable -> NewCustom
- NewTableBy -> NewBy
- NewTable -> New

compare.go

@@ -1,11 +1,11 @@
 package cuckoo
 
 // An EqualFunc determines whethers two keys are 'equal'. Keys that are 'equal'
-// are teated as the same by the [Table]. A good EqualFunc is pure,
-// deterministic, and fast. By default, [NewTable] uses [DefaultEqualFunc].
+// are teated as the same by the [HashTable]. A good EqualFunc is pure,
+// deterministic, and fast. By default, [New] uses [DefaultEqualFunc].
 //
 // This function MUST NOT return true if the [Hash] digest of two keys
-// are different: the [Table] will not work.
+// are different: the [HashTable] will not work.
 type EqualFunc[K any] = func(a, b K) bool
 
 // DefaultEqualFunc compares two keys by strict equality. Returns true if the