Template updates (#7221)

* Template updates

* Flesh out info.json & keymap.c, and turn double spaces section into a list

* Add enum to demonstrate layer naming

* Semicolon

quantum/template/base/keyboard.h

@@ -13,11 +13,12 @@
  * You should have received a copy of the GNU General Public License
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
+
 #pragma once
 
 #include "quantum.h"
 
-/* This a shortcut to help you visually see your layout.
+/* This is a shortcut to help you visually see your layout.
  *
  * The first section contains all of the arguments representing the physical
  * layout of the board and position of the keys.
@@ -27,9 +28,9 @@
  */
 #define LAYOUT( \
     k00, k01, k02, \
-      k10,  k11   \
+      k10,  k12    \
 ) \
 { \
     { k00, k01,   k02 }, \
-    { k10, KC_NO, k11 }, \
+    { k10, KC_NO, k12 }  \
 }