diff --git a/src/apis/emscripten/README.md b/src/apis/emscripten/README.md
index 4dcda5c12..b0b6d32d3 100644
--- a/src/apis/emscripten/README.md
+++ b/src/apis/emscripten/README.md
@@ -511,3 +511,12 @@
   ```rust
 
   ```
+
+### LEGEND     [:top:](#host-apis)
+✅ - Implemented
+
+❗️ - Elevated privilege
+
+🔥 - Possible memory access violation
+
+📥 - Access to external memory