The output of diff is formed of chunks, each chunk corresponding to a set of changes. The *************** line marks the start of such a chunk.
Each chunk gives you the context in the files. *** 1,3 **** means that what follows are line 1 to 3 in the first file, while --- 1,3 ---- means that what follows are line 1 to 3 in the second file.
A minus sign - in the first column denotes lines that have been deleted, and a plus sign + marks lines that have been added. An exclamation point ! marks lines that have changed.
If your case, peach in the first file has been changed to strawberry in the second.