diff --git a/README.md b/README.md
index 72e75ef..a1273a2 100644
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@@ -7,9 +7,9 @@
 1 - New better meassurement formula for Power and SWR calculation, compensation and calibration.
 2 - Setting by Cells control implementation. There are 10 cells you can find opening a FW .hex file in Notepad++ program as Intel HEX file.
 At the end by address EEE0 and EEF0 you can see them and change values. After changing any value you must to correct a checksumm for each
-changed string. Copy the needed string into Checsumm.htm and get correct checksumm. It should be green coolor before you can save changed .hex FW file.
+changed string. Copy the needed string into Checsumm.html and get correct checksumm. It should be green coolor before you can save changed .hex FW file.
 
-[![](https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner/blob/main/Photos/tuner_2.jpg)](https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner/blob/main/Photos/tuner_2.jpg)
+[![](https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner/blob/main/Photos/Cells.jpg)](https://github.com/Dfinitski/ATU-10-10W-QRP-antenna-tuner/blob/main/Photos/Cells.jpg)
 
 Cells description:
 1) Time to display off in minutes, 5 mins by default, 0 to always on display