doc: Move CSV format section

CONTRIBUTING.md

@@ -31,6 +31,12 @@ To install Node.js dependencies:
 npm install
 ```
 
+### Building
+
+To build Anki `apkg` files from the CSVs run the script `scripts/generate-decks.py`.
+
+To update screenshots of the templates run the command `npm run generate-screenshots`.
+
 ## Making Changes
 
 ### CSV Format
@@ -42,12 +48,6 @@ The CSV schema contains the following fields
 - `tags` - Metadata for the note that could be used by various Anki apps for advanced customisation. The existing data are relics from the previous deck that the project was sourced from.
 - `guid` - The “Globally Unique Identifier” used by Anki to keep a stable reference of notes. For new entries we can ignore adding this and the project should autogenerate a new guid. Changing this field would result in losing existing progress or history within your Anki app.
 
-### Building
-
-To build Anki `apkg` files from the CSVs run the script `scripts/generate-decks.py`.
-
-To update screenshots of the templates run the command `npm run generate-screenshots`.
-
 ## Submitting changes
 
 Please send a [GitHub Pull Request to open-anki-jlpt-decks](https://github.com/jamsinclair/open-anki-jlpt-decks/pull/new/master) and follow the Pull Request template.