added comments

src/lib/myFonts.ts

@@ -1,6 +1,8 @@
 import localFont from 'next/font/local'
 import { IBM_Plex_Sans } from 'next/font/google'
 
+// Loads the Google-hosted IBM Plex Sans font.
+// It is downloaded to build directory during build.
 export const font_IbmPlexSans = IBM_Plex_Sans({
     subsets: ['latin'],
     weight: ['400', '500', '700'],
@@ -8,6 +10,7 @@ export const font_IbmPlexSans = IBM_Plex_Sans({
     variable: '--font-ibm-plex-sans',
 })
 
+// Loads the local Hack font used by the navbar.
 export const font_Hack = localFont({
     src: [
         {