No Problem! Happy to help.
To get the formatting to also apply to strings not exactly matching the field - you can utilize the CharIndex('String1','String2') Function. CharIndex takes String1 (the value you are checking for - 'Ready' in this case) and compares it against String2 - returning the position where the function found a match. If no Match is found, the function will return -1 as the position value.
So, leveraging this function - your formatting would look something like this -
(CharIndex('Ready', [FieldName])) != -1
Basically - the Conditional Formatting will occur if there is any 'position' value returned by the CharIndex function (i.e. It found a match).