Add bits to Packages_details, Packages_user, fix up typos

doc/src/Packages_details.txt

@@ -76,6 +76,7 @@ as contained in the file name.
 "USER-EFF"_#PKG-USER-EFF,
 "USER-FEP"_#PKG-USER-FEP,
 "USER-H5MD"_#PKG-USER-H5MD,
+"USER-HMA"_#PKG-USER-HMA,
 "USER-INTEL"_#PKG-USER-INTEL,
 "USER-LB"_#PKG-USER-LB,
 "USER-MANIFOLD"_#PKG-USER-MANIFOLD,
@@ -1373,6 +1374,25 @@ lib/h5md/README
 
 :line
 
+USER-HMA package :link(PKG-USER-HMA),h4
+
+[Contents:]
+
+Harmonically mapped averaging for efficient calculation of properties of
+crystalline solids. The compute hma can specify use of HMA for calculation of
+potential energy, pressure and heat capacity.
+
+[Author:] Apoorva Purohit, Andrew Schultz and David Kofke (University at
+Buffalo, NY, USA)
+
+[Supporting info:]
+
+examples/USER/hma/README
+src/USER-HMA/README
+"compute hma"_compute_hma.html :ul
+
+:line
+
 USER-INTEL package :link(PKG-USER-INTEL),h4
 
 [Contents:]

doc/src/Packages_user.txt

@@ -51,6 +51,7 @@ Package, Description, Doc page, Example, Library
 "USER-EFF"_Packages_details.html#PKG-USER-EFF, electron force field,"pair_style eff/cut"_pair_eff.html, USER/eff, no
 "USER-FEP"_Packages_details.html#PKG-USER-FEP, free energy perturbation,"compute fep"_compute_fep.html, USER/fep, no
 "USER-H5MD"_Packages_details.html#PKG-USER-H5MD, dump output via HDF5,"dump h5md"_dump_h5md.html, n/a, ext
+"USER-HMA"_Packages_details.html#PKG-USER-HMA, compute properties via HMA,"compute hma"_compute_hma.html, USER/hma, no
 "USER-INTEL"_Packages_details.html#PKG-USER-INTEL, optimized Intel CPU and KNL styles,"Speed intel"_Speed_intel.html, "Benchmarks"_http://lammps.sandia.gov/bench.html, no
 "USER-LB"_Packages_details.html#PKG-USER-LB, Lattice Boltzmann fluid,"fix lb/fluid"_fix_lb_fluid.html, USER/lb, no
 "USER-MANIFOLD"_Packages_details.html#PKG-USER-MANIFOLD, motion on 2d surfaces,"fix manifoldforce"_fix_manifoldforce.html, USER/manifold, no

doc/src/compute_hma.txt

@@ -61,7 +61,7 @@ The pressure is computed by the formula:
 \end\{equation\}
 
 where \(\rho\) is the number density of the system, \(\Delta \hat P\) is the
-difference between theh harmonic and lattice pressure, and \(P_\{vir\}\) is
+difference between the harmonic and lattice pressure, and \(P_\{vir\}\) is
 the virial pressure computed as the sum of pair, bond, angle, dihedral,
 improper, kspace (long-range), and fix contributions to the force on each
 atom.  Although the method will work for any value of \(\Delta \hat P\)
@@ -76,13 +76,13 @@ U_\{HMA\}^2 \right> - \left<U_\{HMA\}\right>^2 \right)/T + \frac\{1\}\{4 T\}
 \left< F\bullet\Delta r + \Delta r \bullet \Phi \bullet \Delta r \right>
 \end\{equation\}
 
-where \(\Phi\) is the Hessian of second derivatives. The compute hma command
+where \(\Phi\) is the Hessian matrix. The compute hma command
 computes the full expression for \(C_V\) except for the
 \(\left<U_\{HMA\}^2\right>^2\) in the variance term, which can be obtained by
 passing the {u} keyword; you must add this extra contribution to the \(C_V\)
 value reported by this compute.  The variance term can cause significant
 roundoff error when computing \(C_V\).  To address this, the {anharmonic}
-keyword can be passed and/or the output format can be speicified with more
+keyword can be passed and/or the output format can be specified with more
 digits.
 
 thermo_modify format float '%22.15e' :pre