bug in rules/preprocessing_lr.smk: fixed guppy cmd

workflow/rules/preprocessing_lr.smk

@@ -17,7 +17,7 @@ checkpoint guppy_gpu_basecalling:
         """
         (date && \
         {config[guppy][gpu][bin]} --input_path $(dirname {input[0]}) --save_path $(dirname {output}) \
-        --config config[guppy][config] \
+        --config {config[guppy][config]} \
         --disable_pings --compress_fastq \
         --cpu_threads_per_caller {threads} \
         -x {config[guppy][gpu][gpu_device]} \