When using the word "of" it is kind of vague depending upon how your sentence is phrased. As for the word "to" it is more considered that your notebook is currently being corrected for corrections. The correct way to phrase this sentence is as follows: Your corrections to my notebook entry.

Using "of" kind of makes the original direct object (notebook) become vague. It is more making it a secondary subject rather than a direct object. "to" makes a little more sense because it labels that the notebook is being corrected (direct object) "of" is still a little vague. If you want to give a reason for "corrections", then the particle becomes "for" so then you can label the corrections as the subject/reason or the direct object instead. (omit "notebook") Hope this helps.

I would believe it should be: Your corrections to my notebook entry. Honestly, try not complicate it and keep it simple. [Your corrections ..... ] would suffice and let readers know the context.