Amend code review comments

source/coral/slab.zig

@@ -7,11 +7,11 @@ const math = @import("./math.zig");
 const std = @import("std");
 
 ///
-/// Addressable mapping of integer values of type described by `index_int` to values of type `Value`.
+/// Addressable mapping of integers described by `index_int` to values of type `Value`.
 ///
-/// Slab maps are similar to slot maps in that they have O(1) insertion and removal, use a fragmented flat table
-/// structure instead. This reduces memory usage in some cases and can be useful for data that does not need to be
-/// quickly iterated over, as values ordering is not guaranteed.
+/// Slab maps are similar to slot maps in that they have O(1) insertion and removal, however, use a flat table layout
+/// instead of parallel arrays. This reduces memory usage in some cases and can be useful for data that does not need to
+/// be quickly iterated over, as values ordering is not guaranteed.
 ///
 /// *Note* `index_int` values may be as big or as small as desired per the use-case of the consumer, however, integers
 /// smaller than `usize` may result in the map reporting it is out of memory due to exhausting the addressable space
@@ -37,7 +37,7 @@ pub fn Map(comptime index_int: std.builtin.Type.Int, comptime Value: type) type
 		const Index = math.Int(index_int);
 
 		///
-		/// Slab type.
+		/// Slab map type.
 		///
 		const Self = @This();
 
@@ -78,6 +78,7 @@ pub fn Map(comptime index_int: std.builtin.Type.Int, comptime Value: type) type
 
 			self.table = &.{};
 			self.count = 0;
+			self.free_index = 0;
 		}
 
 		///