[csv] binds `SPC m h` to `csv-header-line`

CHANGELOG.develop

@@ -1120,6 +1120,9 @@ Other:
 - Fixes:
   - Disabled functions not present in the latest =omnisharp= package
     (thanks to Saulius Menkevičius)
+**** CSV
+- Key bindings:
+  - ~SPC m h~ to =csv-header-line= (thanks to Francesc Elies Henar)
 **** D
 - Fixes:
   - Fixed =d-mode= flycheck imports on dub projects (thanks to Dietrich Daroch)

layers/+lang/csv/README.org

@@ -35,6 +35,7 @@ To use this contribution add it to your =~/.spacemacs=
 |-------------+----------------------------------|
 | ~SPC m a~   | Align fields                     |
 | ~SPC m d~   | Kill fields                      |
+| ~SPC m h~   | Shows/unshows a header line.     |
 | ~SPC m i~   | Toggle delimiter invisibility    |
 | ~SPC m n~   | Move forward 1 field             |
 | ~SPC m p~   | Move backwards 1 field           |

layers/+lang/csv/packages.el

@@ -21,6 +21,7 @@
       (spacemacs/set-leader-keys-for-major-mode 'csv-mode
         "a"  'csv-align-fields
         "d"  'csv-kill-fields
+        "h"  'csv-header-line
         "i"  'csv-toggle-invisibility
         "n"  'csv-forward-field
         "p"  'csv-backward-field