Update readme.

Author: T4rk1n

README.md

@@ -12,6 +12,8 @@ $ pip install cookiecutter
 ```
 $ cookiecutter [email protected]:plotly/dash-component-boilerplate.git
 ```
+The prompt will ask questions about the project, then it will create your project in a directory with the `project_shortname` variable.
+
 3. Install dependencies
     ```
     $ cd {{cookiecutter.project_shortname}}

{{cookiecutter.project_shortname}}/README.md

@@ -12,6 +12,8 @@ $ pip install cookiecutter
 ```
 $ cookiecutter [email protected]:plotly/dash-component-boilerplate.git
 ```
+The prompt will ask questions about the project, then it will create your project in a directory with the `project_shortname` variable.
+
 3. Install dependencies
     ```
     $ cd {{cookiecutter.project_shortname}}