Fix various links

doc/src/Intro_authors.txt

@@ -140,7 +140,7 @@ Aug15 : timer command : Axel Kohlmeyer (Temple U)
 Aug15 : USER-H5MD package : Pierre de Buyl (KU Leuven)
 Aug15 : COMPRESS package : Axel Kohlmeyer (Temple U)
 Aug15 : USER-SMD package : Georg Gunzenmueller (EMI)
-Jul15 : new HTML format for "doc pages"_doc/Manual.html with search option : Richard Berger (JKU)
+Jul15 : new HTML format for "doc pages"_Manual.html with search option : Richard Berger (JKU)
 Jul15 : rRESPA with pair hybrid : Sam Genheden (U of Southampton)
 Jul15 : pair_modify special : Axel Kohlmeyer (Temple U)
 Jul15 : pair polymorphic : Xiaowang Zhou and Reese Jones (Sandia)

doc/src/Intro_features.txt

@@ -186,14 +186,14 @@ These are LAMMPS capabilities which you may not think of as typical
 classical MD options:
 
 "static"_balance.html and "dynamic load-balancing"_fix_balance.html
-"generalized aspherical particles"_body.html
+"generalized aspherical particles"_Howto_body.html
 "stochastic rotation dynamics (SRD)"_fix_srd.html
 "real-time visualization and interactive MD"_fix_imd.html
 calculate "virtual diffraction patterns"_compute_xrd.html
 "atom-to-continuum coupling"_fix_atc.html with finite elements
 coupled rigid body integration via the "POEMS"_fix_poems.html library
 "QM/MM coupling"_fix_qmmm.html
-Monte Carlo via "GCMC"_fix_gcmc.html and "tfMC"_fix_tfmc.html and "atom swapping"_fix_swap.html
+Monte Carlo via "GCMC"_fix_gcmc.html and "tfMC"_fix_tfmc.html and "atom swapping"_fix_atom_swap.html
 "path-integral molecular dynamics (PIMD)"_fix_ipi.html and "this as well"_fix_pimd.html
 "Direct Simulation Monte Carlo"_pair_dsmc.html for low-density fluids
 "Peridynamics mesoscale modeling"_pair_peri.html