Update Readme

more details / added picture

README.md

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 # SAK
 Switch Army Knife (SAK)
 
-
+![alt text](http://members.psxtools.de/kempa/sak/SAK_by_kempa_main.png)
 
 With Switch Army Knife you can easily juggle XCI / NSP content from your switch.
 
@@ -20,4 +20,41 @@ With Switch Army Knife you can easily juggle XCI / NSP content from your switch.
 - Extracting Switch savegames which you have copied from your User partition
 - Format the SD card in FAT32
 
+
+
+## Copyright:
+The code was completely developed by me.
+So the tool can be published completely free and legal!
+
+### Prerequisite for this:
+The 7zip archive must not be changed
+Always with reference to the original forum thread (see Link below)
+
+## Important notices: (included tools that are not from me):
+### 4NXCI (4nxci.exe)
+The respect goes to The-4n and SciresM for developing and providing the tool.
+Source: https://github.com/The-4n/4NXCI
+
+### FAT32 Format (guiformat.exe)
+Thanks goes to Ridgecrop Consultants Ltd for FAT32 Format as GUI version
+Source: http://www.ridgecrop.demon.co.uk/index.htm?guiformat.htm
+
+### hactool (hactool.exe)
+The respect goes to SciresM for developing and providing the tool.
+Source: https://github.com/SciresM/hactool
+
+### NSC_BUILDER (squirrel.exe)
+The respect goes to julesontheroad for developing and providing the tool.
+Source: https://github.com/julesontheroad/NSC_BUILDER
+
+### LibHac (hactoolnet.exe)
+The respect goes to Thealexbarney for developing and providing the tool.
+https://github.com/Thealexbarney
+
+### reNXpack (renxpack.exe)
+The respect goes to The-4n and SciresM for developing and providing the tool.
+Source: https://github.com/The-4n/reNXpack
+
+
+
 More details at https://psxtools.de/index.php/Thread/77281