Update README.md

README.md

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 # Description: 
 
 This code creates a classical force-field for a peptide containing 
-4-Fluorinated Proline (non-natural) residues. (ACE-PRF-NME by default, can be changed in tleap_script.txt)
+4-Fluorinated Proline residues. (chooses ACE-PRF-NME by default, but can be changed in tleap_script.txt)
 Code supports the following 4-fluorinated prolines:
 * PRF is 4R-fluoro proline residue
 * PSF is 4S-fluoro proline residue
 
 As an example you may choose the following sequence (shown in snapshot below): 
 ACE-GLY-GLY-PRF-GLY-GLY-NME
 
-* You can use the code for canonical peptides too.
-* Creates input files for gromacs or amber or charmm (or openMM).
-* Adds a TIP3P waterbox. (1nm^3 default, can be changed in tleap_script.txt)
+* All canonical amino acid residues are available too.
+* Code also adds a TIP3P waterbox. (1nm^3 default, can be changed in tleap_script.txt)
+* Creates force-field parameters and starting configurations for gromacs, amber and charmm (or openMM).
 * Creates a plumed.dat file that adds pucker correction for fluorinated proline residues.
 
 You can select a peptide of your choice by editing the tleap_script.txt file.
 * As an example you may choose the following sequence (shown in snapshot below): 
 ACE-GLY-GLY-PRF-GLY-GLY-NME
 
 
-
 ![Alt text](code.png/code.png.001.png?raw=true "Title")
 
 # Usage: