diff --git a/README.md b/README.md
index 9b64d646..b4995650 100644
--- a/README.md
+++ b/README.md
@@ -129,26 +129,26 @@ for a quick overview of the supported features.
 
 | Name            | Example                         | Supported |
 | --------------- | ------------------------------- | --------- |
-| If Else         | `if..else..elif`                | ✅         |
-| Loop            | `for/while/break/continue`      | ✅         |
-| Function        | `def f(x,*args,y=1):`           | ✅         |
-| Subclass        | `class A(B):`                   | ✅         |
-| List            | `[1, 2, 'a']`                   | ✅         |
-| ListComp        | `[i for i in range(5)]`         | ✅         |
-| Slice           | `a[1:2], a[:2], a[1:]`          | ✅         |
-| Tuple           | `(1, 2, 'a')`                   | ✅         |
-| Dict            | `{'a': 1, 'b': 2}`              | ✅         |
-| F-String        | `f'value is {x}'`               | ✅         |
-| Unpacking       | `a, b = 1, 2`                   | ✅         |
-| Star Unpacking  | `a, *b = [1, 2, 3]`             | ✅         |
-| Exception       | `raise/try..catch..finally`     | ✅         |
-| Dynamic Code    | `eval()/exec()`                 | ✅         |
-| Reflection      | `hasattr()/getattr()/setattr()` | ✅         |
-| Import          | `import/from..import`           | ✅         |
-| Context Block   | `with <expr> as <id>:`          | ✅         |
-| Type Annotation | `def f(a:int, b:float=1)`       | ✅         |
-| Generator       | `yield i`                       | ✅         |
-| Decorator       | `@cache`                        | ✅         |
+| If Else         | `if..else..elif`                | ✅       |
+| Loop            | `for/while/break/continue`      | ✅       |
+| Function        | `def f(x,*args,y=1):`           | ✅       |
+| Subclass        | `class A(B):`                   | ✅       |
+| List            | `[1, 2, 'a']`                   | ✅       |
+| ListComp        | `[i for i in range(5)]`         | ✅       |
+| Slice           | `a[1:2], a[:2], a[1:]`          | ✅       |
+| Tuple           | `(1, 2, 'a')`                   | ✅       |
+| Dict            | `{'a': 1, 'b': 2}`              | ✅       |
+| F-String        | `f'value is {x}'`               | ✅       |
+| Unpacking       | `a, b = 1, 2`                   | ✅       |
+| Star Unpacking  | `a, *b = [1, 2, 3]`             | ✅       |
+| Exception       | `raise/try..catch..finally`     | ✅       |
+| Dynamic Code    | `eval()/exec()`                 | ✅       |
+| Reflection      | `hasattr()/getattr()/setattr()` | ✅       |
+| Import          | `import/from..import`           | ✅       |
+| Context Block   | `with <expr> as <id>:`          | ✅       |
+| Type Annotation | `def f(a:int, b:float=1)`       | ✅       |
+| Generator       | `yield i`                       | ✅       |
+| Decorator       | `@cache`                        | ✅       |
 
 ## Performance
 
@@ -159,17 +159,17 @@ See https://pocketpy.dev/performance/ for details.
 
 And these are the results of the primes benchmark on Intel i5-12400F, WSL (Ubuntu 20.04 LTS), which *roughly* reflects the performance among c++, lua, pkpy and cpython.
 
-| name    | version | time                      | file                                                                                                                              |
-| ------- | ------- | ------------------------- | --------------------------------------------------------------------------------------------------------------------------------- |
-| c++     | gnu++11 | `0.104s ■□□□□□□□□□□□□□□□` | [benchmarks/primes.cpp](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.cpp) |
-| lua     | 5.3.3   | `1.576s ■■■■■■■■■□□□□□□□` | [benchmarks/primes.lua](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.lua) |
-| pkpy    | 1.2.7   | `2.385s ■■■■■■■■■■■■■□□□` | [benchmarks/primes.py](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.py)   |
-| cpython | 3.8.10  | `2.871s ■■■■■■■■■■■■■■■■` | [benchmarks/primes.py](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.py)   |
+| name | version | time | file |
+| ---- | ---- | ---- | ---- |
+| c++ | gnu++11 | `0.104s ■□□□□□□□□□□□□□□□` | [benchmarks/primes.cpp](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.cpp) |
+| lua | 5.3.3 | `1.576s ■■■■■■■■■□□□□□□□` | [benchmarks/primes.lua](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.lua) |
+| pkpy | 1.2.7 | `2.385s ■■■■■■■■■■■■■□□□` | [benchmarks/primes.py](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.py) |
+| cpython | 3.8.10 | `2.871s ■■■■■■■■■■■■■■■■` | [benchmarks/primes.py](https://github.com/pocketpy/pocketpy/blob/9481d653b60b81f4590a4d48f2be496f6962261e/benchmarks/primes.py) |
 
 ## Used By
 
 |                                                                 | Description                                                              |
-| --------------------------------------------------------------- | ------------------------------------------------------------------------ |
+|-----------------------------------------------------------------|--------------------------------------------------------------------------|
 | [TIC-80](https://github.com/nesbox/TIC-80)                      | TIC-80 is a fantasy computer for making, playing and sharing tiny games. |
 | [MiniPythonIDE](https://github.com/CU-Production/MiniPythonIDE) | A python ide base on pocketpy                                            |
 | [py-js](https://github.com/shakfu/py-js)                        | Python3 externals for Max / MSP                                          |