Update README files

configs/sama5d4-ek/README.txt

@@ -4831,8 +4831,8 @@ To-Do List
 
    a) With a logic analyzer I can see that the I2C writes to the WM8904
       device look good.  This is the same setup that was used in the working
-      SAMA5D3x-EK nxplayer configuration and so should be correct (you cannot
-      even get this far on the Rev C board).
+      SAMA5D3x-EK nxplayer configuration and so should be correct (you
+      cannot even get this far on the Rev C board).
    b) I2C readback of the WM8904 registers (via CONFIG_WM8904_REGDUMP) does
       not, however, show proper registers contents.  Groups of extra bits
       (apparently 0x01fd) appear to be set in many registers on reading.
@@ -4842,9 +4842,9 @@ To-Do List
       before anything has been written to it.
    c) Also with the logic analyzer, I can that the 12MHz MCLK input is
       being provided to the WM8904.
-   d) However, not bit clock (BLCK) is being generated by the WM8904.  This
-      should appear on both AUDIO_TK0_PB27 and AUDIO_RK0_PB28, but I see
-      nothing.
+   d) However, no bit clock (BLCK) is being generated by the WM8904.  This
+      should appear on both AUDIO_TK0_PB27 and AUDIO_RK0_PB28, but I do not
+      see a clock on these pins.
    e) With no BCLK, I would expect the SSC0 DMA transfers to hang... they do
       not.  No errors of any kind are detected by the firmware; it believes
       that it is successfully playing .WAV files.  This leads to believe