Add spell-check icons (#1216)

* Add `spell-check` icon

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Add `spell-check` alternate icon

Co-authored-by: Jakob Guddas <github@jguddas.de>

* Improve `spell-check` icons metadata

---------

Co-authored-by: Jakob Guddas <github@jguddas.de>

icons/spell-check-2.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "spelling",
+    "error",
+    "mistake",
+    "oversight",
+    "typo",
+    "correction",
+    "code",
+    "linter",
+    "a"
+  ],
+  "categories": [
+    "text",
+    "development"
+  ]
+}

icons/spell-check-2.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="m6 16 6-12 6 12" />
+  <path d="M8 12h8" />
+  <path d="M4 21c1.1 0 1.1-1 2.3-1s1.1 1 2.3 1c1.1 0 1.1-1 2.3-1 1.1 0 1.1 1 2.3 1 1.1 0 1.1-1 2.3-1 1.1 0 1.1 1 2.3 1 1.1 0 1.1-1 2.3-1" />
+</svg>

icons/spell-check.json

@@ -0,0 +1,18 @@
+{
+  "$schema": "../icon.schema.json",
+  "tags": [
+    "spelling",
+    "error",
+    "mistake",
+    "oversight",
+    "typo",
+    "correction",
+    "code",
+    "linter",
+    "a"
+  ],
+  "categories": [
+    "text",
+    "development"
+  ]
+}

icons/spell-check.svg

@@ -0,0 +1,15 @@
+<svg
+  xmlns="http://www.w3.org/2000/svg"
+  width="24"
+  height="24"
+  viewBox="0 0 24 24"
+  fill="none"
+  stroke="currentColor"
+  stroke-width="2"
+  stroke-linecap="round"
+  stroke-linejoin="round"
+>
+  <path d="m6 16 6-12 6 12" />
+  <path d="M8 12h8" />
+  <path d="m16 20 2 2 4-4" />
+</svg>