minor change

Author: ZhiYeG

README.md

@@ -63,7 +63,8 @@ And the the Uniref90 database download will take about 40 minutes to 70 minutes,
 ### Parameter Description of the CDPred prediction script.
 
 **Command**:  
->`python CDPred_Installation_Path/lib/Model_predict.py -n [name] -p [pdb_file_list] -a [a3m_file] -m [model_option] -o [out_path]`  
+>`python CDPred_Installation_Path/lib/Model_predict.py -n [name] -p [pdb_file_list] -a [a3m_file] -m [model_option] -o [out_path]`   
+ 
 **Parameters**:  
 >`-n` – The name of the protein complex, can be protein ID or custom name.  
 >`-p` – The predicted monomer tertiary structure file or files with ".pdb" suffix. For homodimer inter-chain distance prediction, one predicted monomer structure file is enough. For heterodimer inter-chain distance prediction, both chains' predicted monomer structure files are required and needed to seperate by one space (Check the detail in [Demo](#demo) section).  
@@ -131,6 +132,7 @@ The contents of each output file are as follows:
 ## Evaluation on a Small Dataset
 **Command**:  
 >`python CDPred_Installation_Path/lib/distmap_evaluate.py -p [pred_map] -t [true_map] -f1 [fasta_file1] -f2 [fasta_file2]`  
+
 **Parameters**:  
 >`-p` – The prediction contact map with '.htxt' suffix.   
 >`-t` – The nativate distance/contact map with '.htxt' suffix.