writing: replace google font

themes/sophie-lewis/assets/scss/font.scss

@@ -12,6 +12,7 @@
 
 $sans_font: IBMPlexSans;
 $serif_font: IBMPlexSerif;
+$mono_font: IBMPlexMono;
 
 @font-face {
     @include define-font-family($sans_font, normal, italic, 'IBMPlexSans-Italic.woff2')
@@ -40,4 +41,21 @@ $serif_font: IBMPlexSerif;
 @font-face {
     @include define-font-family($serif_font, lighter, italic, 'IBMPlexSerif-LightItalic.woff2')
 }
-
+@font-face {
+    @include define-font-family($mono_font, normal, italic, 'IBMPlexMono-Italic.woff2')
+}
+@font-face {
+    @include define-font-family($mono_font, normal, null, 'IBMPlexMono-Regular.woff2')
+}
+@font-face {
+    @include define-font-family($mono_font, bold, italic, 'IBMPlexMono-BoldItalic.woff2')
+}
+@font-face {
+    @include define-font-family($mono_font, bold, null, 'IBMPlexMono-Bold.woff2')
+}
+@font-face {
+    @include define-font-family($mono_font, 700, italic, 'IBMPlexMono-MediumItalic.woff2')
+}
+@font-face {
+    @include define-font-family($mono_font, 700, null, 'IBMPlexMono-Medium.woff2')
+}