update readme so guide is generated for a specific book
update readme so guide is generated for a specific book

Connexions/cnx-recipes,Connexions/cnx-rulesets,Connexions/cte,Connexions/cte,Connexions/cnx-recipes,Connexions/cnx-rulesets,Connexions/cnx-rulesets,Connexions/cnx-recipes,Connexions/cnx-recipes,Connexions/cnx-recipes,Connexions/cnx-rulesets