Further overhaul of package line comments.

core/strconv/decimal/decimal.odin

@@ -1,5 +1,6 @@
-// Multiple precision decimal numbers
-// NOTE: This is only for floating point printing and nothing else
+// Multiple precision decimal numbers for use by the `strconv` package.
+//
+// NOTE: This is only for floating point printing and nothing else.
 package strconv_decimal
 
 Decimal :: struct {

core/strconv/strconv.odin

@@ -1,4 +1,4 @@
-// package strconv implements conversions to and from string represnetations of other data types
+// Conversions to and from `string` representations of other data types like integers and booleans.
 package strconv
 
 import "core:unicode/utf8"