Update README

Author: shinaoka

README.md

@@ -8,7 +8,7 @@ The [T4ATemplate module](https://github.com/tensor4all/T4ATemplate.jl) provides
 1. Git clone this repository to a local machine.
 2. Update UUID and the package name in Project.toml.
 3. Rename `src/T4ATemplate.jl`.
-4. Replace `T4ATempalte` throughtout `src/` and `test/` by the new package name.
+4. Replace `T4ATempalte` throughtout `src/`, `test/` and `docs/` by the new package name.
 
 
 One can use the following command on Mac to generate a new UUID: