Typo: "excuter" should be "executor" in folder name and documentation

[LJXjean]

Describe the typo

The folder excuter/ and several docs use the misspelling excuter.
The correct spelling should be executor.

Affected files / locations

• deepx/excuter/**
• doc/excuter
• README.md line 47
  ...

Suggested fix

1. Rename the folder to executor and update all imports:

   git mv excuter executor
   grep -R --exclude=.git -n 'excuter' .

2. Replace occurrences in documentation.

[miaobyte]

great,you can try fix it @