corrected a README.md file for the "NIPAM_polymer+water+ions" example

Author: jewettaij

examples/all_atom/force_field_OPLSAA/NIPAM_polymer+water+ions/README.md

@@ -3,14 +3,14 @@ NIPAM polymer in water with ions
 
 ### Images
 
-<img src="images/NIPAM_monomer_OPLS.jpg" width=100> <img src="images/rightarrow.svg" height=80> <img src="images/NIPAM_monomer.jpg" width=60> x10 <img src="images/plus.svg" height=80> <img src="images/wat.jpg" width=70> x970 <img src="images/plus.svg" height=80> <img src="images/Ca++.jpg" width=40> <img src="images/plus.svg" height=80> <img src="images/Cl-.jpg" width=40> x2 <img src="images/rightarrow.svg" height=80> <img src="images/t=0.jpg" width=170> <img src="images/rightarrow.svg" height=80> **LAMMPS** <img src="images/rightarrow.svg" height=80> <img src="images/t=2200000fs.jpg" width=170>
+<img src="images/NIPAM_monomer.jpg" width=60> x10 <img src="images/plus.svg" height=80> <img src="images/wat.jpg" width=70> x970 <img src="images/plus.svg" height=80> <img src="images/Ca++.jpg" width=40> <img src="images/plus.svg" height=80> <img src="images/Cl-.jpg" width=40> x2 <img src="images/rightarrow.svg" height=80> <img src="images/t=0.jpg" width=170> <img src="images/rightarrow.svg" height=80> **LAMMPS** <img src="images/rightarrow.svg" height=80> <img src="images/t=2200000fs.jpg" width=170>
 
 ### Description
 
 A NIPAM polymer (10mer) immersed in (SPCE) water with Ca++ and Cl- ions
 using the *OPLSAA* force field.
 In this example, the NIPAM polymer
-(defined in [polyNIPAM_10mer.lt](./moltemplate_files/polyNIPAM_10mer.lt))
+(defined in [NIPAM_polymer_10mer.lt](./moltemplate_files/NIPAM_polymer_10mer.lt))
 was built from 10 "NIPAM_monomer" subunits
 (defined in [NIPAM.lt](./moltemplate_files/NIPAM.lt))
 and mixed with 500 SPCE water molecules,
@@ -20,6 +20,9 @@ The water molecules were initially arranged in an 10x10x10 lattice (with 12 vaca
 
 The number of molecules, positions, and simulation box size can be controlled by editing the [system.lt file](moltemplate_files/system.lt).  The simulation contitions can be controlled by editing the [run_in.npt file](run_in.npt).
 
+## Atom types used
+
+<img src="images/NIPAM_monomer_OPLS.jpg" width=200>
 
 ## Instructions
 
@@ -36,7 +39,7 @@ The number of molecules, positions, and simulation box size can be controlled by
 
 In this example, atomic charge for OPLSAA atoms is determined by @atom type
 *(...according to a lookup table located at the beginning of the
-["oplsaa2023.lt"](../../../moltemplate/force_fields/oplsaa2023.lt) file)*.
+["oplsaa2023.lt"](../../../../moltemplate/force_fields/oplsaa2023.lt) file)*.
 *(Any atomic charges listed in the "Data Atoms" section of your molecules'
 LT files will be ignored.)*
 **These charges can be overridden.**