Add more package lines for the docs

core/container/bit_array/doc.odin

@@ -1,3 +1,6 @@
+// package bit_array implements a dynamically-sized array of bits
+package container_dynamic_bit_array
+
 /*
 The Bit Array can be used in several ways:
 
@@ -48,5 +51,4 @@ Example:
 		fmt.printf("Get(Negative_Test): %v, %v\n", get(bits, Foo.Negative_Test))
 		fmt.printf("Freed.\n")
 	}
-*/
-package container_dynamic_bit_array
+*/