add premade config and build example for proportional fonts

Author: arrowtype

fonts/RecMonoCustom/RecMonoCustom-Bold-1.085.ttf

@@ -0,0 +1,41 @@
+# Configuration for Rec Mono Sans Duo
+# Here as an example, or to tweak & use if you wish to
+# See README for details.
+
+Family Name: Sans Duo
+
+Fonts:
+  Regular:
+    MONO: 0
+    CASL: 0
+    wght: 400
+    slnt: 0
+    CRSV: 0
+  Italic:
+    MONO: 0
+    CASL: 1
+    wght: 400
+    slnt: -10
+    CRSV: 1
+  Bold:
+    MONO: 0
+    CASL: 0
+    wght: 750
+    slnt: 0
+    CRSV: 0
+  Bold Italic:
+    MONO: 0
+    CASL: 1
+    wght: 750
+    slnt: -10
+    CRSV: 1
+
+# Note: must be set to False if you want to both have a proportional font (MONO < 1) and bake in code ligatures under the "calt" feature
+Code Ligatures: False
+
+Features:
+- ss03 # Simplified f
+- ss05 # Simplified l
+- ss08 # Serifless L and Z
+- ss09 # Simplified 6 and 9
+- ss12 # Simplified @