[Docs] Incorrect links on examples

On page Building a 12-Factor App with Viper Integration there are markdown issues like

# Create a directory for our project

mkdir myapp && cd myapp

# Initialize a Go module

go mod init [example.com/myapp](https://www.google.com/search?q=https://example.com/myapp)

# Install the Cobra generator

go install [github.com/spf13/cobra-cli@latest](https://www.google.com/search?q=https://github.com/spf13/cobra-cli%40latest)

# Create the basic application structure

cobra-cli init

look at after go mod init and go install