diff --git a/0_D0002_18/check-sha-digests.sh b/0_D0002_18/check-sha-digests.sh
new file mode 100644
index 0000000..4642bfd
--- /dev/null
+++ b/0_D0002_18/check-sha-digests.sh
@@ -0,0 +1,5 @@
+# loop over all *.bin.DIGEST files
+
+for filename in *.bin.DIGEST; do
+    shasum -a 256 -c $filename
+done
diff --git a/0_D0002_18/create-sha-digests.sh b/0_D0002_18/create-sha-digests.sh
new file mode 100644
index 0000000..ecf866a
--- /dev/null
+++ b/0_D0002_18/create-sha-digests.sh
@@ -0,0 +1,8 @@
+# bash script that runs shasum on all *.bin files in this directory
+# and creates a file called $filename.DIGEST
+
+# loop over all *.bin files
+for filename in *.bin; do
+    # create a file called $filename.DIGEST
+    shasum -a 256 $filename > $filename.DIGEST
+done
diff --git a/README.md b/README.md
index 4ca4185..8d32680 100644
--- a/README.md
+++ b/README.md
@@ -2,7 +2,7 @@
 
 This repository has been started because the Firmware prior to MW3_16U_5406_1.53 had some significant security issues - See also Thread on [Photovoltaikforum (German)](https://www.photovoltaikforum.com/thread/187077-achtung-wifi-sicherheit-der-deye-und-bosswerk-mi600-300-sowie-baugleiche-microwe/?postID=2859297) or [Article on Heise (German)](https://www.heise.de/news/Sicherheitsluecke-bei-Mikrowechselrichtern-von-Deye-Haendler-nicht-zustaendig-7483376.html)
 
-Additional to that there is a pretty stead pace on firmare releases but sadly no public changelog available. As the Server was also down for a few days earlier in 2023 I've decided to start this repository to keep the firmware versions somehow online even if the server would face issues.
+Additionally to that there is a pretty steady pace on firmware releases but sadly no public changelog is available. As the Server was also down for a few days earlier in 2023 I've decided to start this repository to keep the firmware versions somehow online even if the server would face issues.
 
 > I don't take any responsibility for any damage caused by this firmware. Use at your own risk.
 > It worked on my inverter, but I can't guarantee it will work on yours.
@@ -73,7 +73,6 @@ done
 - [Solarman integration - Homeassistant](https://github.com/StephanJoubert/home_assistant_solarman)
 - And more Repositories tagged with [deye](https://github.com/topics/deye)
 
-
 ## Call for help
 
 If you have more information or insights into the firmware update process, alternative URLs or other information let me know.