[Doc] Add note about specifiying third body efficiencies
[Doc] Add note about specifiying third body efficiencies

Patch provided by Bryan Weber. See Issue 196.

git-svn-id: e76dbe14710aecee1ad27675521492cea2578c83@2631 02a645c2-efd0-11dd-984d-ab748d24aa7e

Cantera/cantera-svn,Cantera/cantera-svn,Cantera/cantera-svn,Cantera/cantera-svn,Cantera/cantera-svn,Cantera/cantera-svn