try add furigana

docs/vocabulary/derived-new-kanji.md

@@ -0,0 +1,7 @@
+# Special kanji words derived from other words
+
+## <ruby>碑<rt>いしぶみ</rt></ruby>
+
+Stone monument (石文)
+
+- 碑の<ruby>銘文<rt>めいぶん</rt></ruby>

forum/OP.md

@@ -824,6 +824,6 @@ Putting on a better **roof** makes it **certain** to be **safe** (in an earthqua
 ![have-scooter|83x105, 50%](upload://u51eXd5SELCv2nkqc5T5MioPgE6.png) (I have a scooter (Have scooter))
 
 髄 - marrow, 55, ずい (bone+have-scooter)
-随 - all, 53, ずい (building+radihave-scootercal)
+随 - all, 53, ずい (building+have-scooter)
 
 [/details]