Fix spelling mistakes

scripts/.aspell.de.pws

@@ -0,0 +1 @@
+personal_ws-1.1 de 0

scripts/spellcheck.sh

@@ -0,0 +1,16 @@
+if ! [ -x "$(command -v aspell)" ]; then
+    echo "Dieses script benötigt aspell"
+    exit 1;
+fi
+
+SCRIPT_DIR="$( cd "$( dirname "$0" )" && pwd )"
+MD_FILES=`find "$SCRIPT_DIR/../" -name "*.md"`
+
+ASPELL_COMMAND="aspell \
+    --lang=de \
+    --personal='$SCRIPT_DIR/.aspell.de.pws'"
+
+for FILE in $MD_FILES
+do
+    $ASPELL_COMMAND -c "$FILE"
+done