diff --git a/README.md b/README.md
index a7e984a..59b3096 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,10 @@ type SuperMemoGrade = 0 | 1 | 2 | 3 | 4 | 5;
 supermemo(item: SuperMemoItem, grade: SuperMemoGrade): SuperMemoItem
 ```
 
-- **repetition**: the number of continous correct responses.
-- **interval**: inter-repetition interval after the repetitions (in days).
-- **efactor**: easiness factor reflecting the easiness of memorizing and retaining a given item in memory.
+- **item**
+  - **repetition**: the number of continous correct responses.
+  - **interval**: inter-repetition interval after the repetitions (in days).
+  - **efactor**: easiness factor reflecting the easiness of memorizing and retaining a given item in memory.
 - **grade**:
   - **5**: perfect response.
   - **4**: correct response after a hesitation.
diff --git a/package.json b/package.json
index 8f8fbce..c979e57 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "typescript"
   ],
   "author": "Vien Dinh",
-  "version": "2.0.1",
+  "version": "2.0.2",
   "license": "MIT",
   "main": "dist/index.js",
   "typings": "dist/index.d.ts",