Update readme, remove wget need

Do no longer use wget to download the file, use curl.

Check that curl and jq exists.

Update ReadMe file

init.sh

@@ -1,11 +1,20 @@
 #!/usr/bin/env bash
 
+# check needed binaries
+if [ -z "$(command -v curl)" ]; then
+	echo "Missing curl application, aborting";
+	exit;
+fi;
+if [ -z "$(command -v jq)" ]; then
+	echo "Missing jq application, aborting";
+	exit;
+fi;
+
 CPU_ARCH=""
 # get the architecture
 _cpu_arch=$(uname -m);
 # weg get like x86_64 or x86_32 (NO), aarch64, etc
-# we ONLY allow x86_64 or aarch64
-# possible add: arm64
+# we ONLY allow x86_64 or aarch64/arm64
 if [ "${_cpu_arch}" = "x86_64" ]; then
 	CPU_ARCH="amd64";
 elif [ "${_cpu_arch}" = "aarch64" ] || [ "${_cpu_arch}" = "arm64" ]; then