Reorder sections in translating documentation

Move "Editing existing strings" to after "Adding new strings".

docs/translating-dev.md

@@ -28,19 +28,19 @@ function getColorName(hex) {
 }
 ```
 
-## Editing existing strings
-
-1. Edit every occurrence of the string inside `_t()` and `_td()` in the JSX files.
-1. Run `npm run i18n` to update `src/i18n/strings/en_EN.json`. (Be sure to run this in the same project as the JSX files you just edited.)
-1. Run `npm run prunei18n` to remove the old string from `src/i18n/strings/*.json`.
-
 ## Adding new strings
 
  1. Check if the import ``import { _t } from 'matrix-react-sdk/lib/languageHandler';`` is present. If not add it to the other import statements. Also import `_td` if needed.
  1. Add ``_t()`` to your string. (Don't forget curly braces when you assign an expression to JSX attributes in the render method). If the string is introduced at a point before the translation system has not yet been initialized, use `_td()` instead, and call `_t()` at the appropriate time.
  1. Run `npm run i18n` to update ``src/i18n/strings/en_EN.json``
  1. If you added a string with a plural, you can add other English plural variants to ``src/i18n/strings/en_EN.json`` (remeber to edit the one in the same project as the source file containing your new translation).
 
+## Editing existing strings
+
+1. Edit every occurrence of the string inside `_t()` and `_td()` in the JSX files.
+1. Run `npm run i18n` to update `src/i18n/strings/en_EN.json`. (Be sure to run this in the same project as the JSX files you just edited.)
+1. Run `npm run prunei18n` to remove the old string from `src/i18n/strings/*.json`.
+
 ## Adding variables inside a string.
 
 1. Extend your ``_t()`` call. Instead of ``_t(STRING)`` use ``_t(STRING, {})``