[Keymap] New kbd67/hotswap keymap for writing both code and math (#4933)

* Custom keymap.

* Fix magic layer, enable Unicode.

* Update README.

* Make Unicode config change keymap-local.

* Move magic to AltGr, simplifying layout.

* Changes per Drashna.

* Fix magic+esc = backtick!

* Change reset implementation per Drashna's suggestion.

* Add a few more symbols so long as the commit is open - √ℜℂℤ⊙ℚℕ and the like.

* Typo fix.

* Slight simplification, drop an extra variable.

1 files changed, 22 insertions, 0 deletions

diff --git a/keyboards/kbd67/hotswap/keymaps/zunger/config.h b/keyboards/kbd67/hotswap/keymaps/zunger/config.h
new file mode 100644
index 0000000000..cc06440e0d
--- /dev/null
+++ b/keyboards/kbd67/hotswap/keymaps/zunger/config.h
@@ -0,0 +1,22 @@
+/* Copyright 2018 MechMerlin
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * 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
+
+// Enable cmd-option-escape on mac.
+#define GRAVE_ESC_ALT_OVERRIDE
+
+// place overrides here