feat(format): change overall formatting rules to match date-fns

Author: MrWook

docs/.vuepress/components/Formats.vue

@@ -34,12 +34,12 @@ export default {
           value: 'yyyy-MM-dd',
         },
         {
-          text: 'dsu MMM yyyy - e.g 12th Feb 2016',
-          value: 'dsu MMM yyyy',
+          text: 'do MMM yyyy - e.g 12th Feb 2016',
+          value: 'do MMM yyyy',
         },
         {
-          text: 'D dsu MMM yyyy - e.g Sat 12th Feb 2016',
-          value: 'D dsu MMM yyyy',
+          text: 'E do MMM yyyy - e.g Sat 12th Feb 2016',
+          value: 'E do MMM yyyy',
         },
         {
           text: 'dd.MM.yyyy - 20.12.2019',

docs/guide/DateFormatting/README.md

@@ -8,8 +8,8 @@ NB. This is not very robust at all - use at your own risk! Needs a better implem
 |-------|------------------------|-------------|
 | d     | day                    | 1           |
 | dd    | 0 prefixed day         | 01          |
-| D     | abbr day               | Mon         |
-| su    | date suffix            | st, nd, rd  |
+| E     | abbr day               | Mon         |
+| o     | date suffix            | st, nd, rd  |
 | M     | month number (1 based) | 1 (for Jan) |
 | MM    | 0 prefixed month       | 01          |
 | MMM   | abbreviated month name | Jan         |