README modification

README.md

@@ -39,7 +39,7 @@ mkdir DATA
 ## Running snakemake manually
 Once you have all the files, edit the config.json file with your raw fastq 
 * Example
-````json
+```json
 {
         "THREADS": 1,
         "SAMPLES": ["SRR5625858"],
@@ -47,8 +47,9 @@ Once you have all the files, edit the config.json file with your raw fastq
         "THREE_PRIMER": {"SRR5625858": "ACTYAAAKGAATTGRCGGGG"},
         "DATABASE": "/db/frogs_databanks/assignation/16S/silva_132_16S_pintail100/silva_132_16S_pintail100.fasta"
 }
-
 ```
+
+
 the fastq files must be located in the DATA folder and gz format.
 In your terminal use this command 
 ```shell