Adding Release Notes for 5.1.2

diff --git a/SALOME_5_1_1_Release_Notes.pdf b/SALOME_5_1_1_Release_Notes.pdf
deleted file mode 100755 (executable)
index b8b9cc9..0000000
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diff --git a/SALOME_5_1_2_Release Notes.pdf b/SALOME_5_1_2_Release Notes.pdf
new file mode 100755 (executable)
index 0000000..9a4a509
Binary files /dev/null and b/SALOME_5_1_2_Release Notes.pdf differ