reduce warning when processing manual with sphinx

doc/src/commands.txt

@@ -91,6 +91,7 @@ Commands :h1
    suffix
    tad
    temper
+   temper_grem
    thermo
    thermo_modify
    thermo_style

doc/src/computes.txt

@@ -35,6 +35,7 @@ Computes :h1
    compute_erotate_sphere_atom
    compute_event_displace
    compute_fep
+   compute_global_atom
    compute_group_group
    compute_gyration
    compute_gyration_chunk

doc/src/fix_grem.txt

@@ -29,7 +29,7 @@ fix             fxgREM all grem 502 -0.15 -80000 fxnvt :pre
 [Description:]
 
 This fix implements the molecular dynamics version of the generalized
-replica exchange method (gREM) originally developed by "(Kim)"_#Kim,
+replica exchange method (gREM) originally developed by "(Kim)"_#Kim2010,
 which uses non-Boltzmann ensembles to sample over first order phase
 transitions. The is done by defining replicas with an enthalpy
 dependent effective temperature
@@ -103,7 +103,7 @@ npt"_fix_nh.html, "thermo_modify"_thermo_modify.html
 
 :line
 
-:link(Kim)
+:link(Kim2010)
 [(Kim)] Kim, Keyes, Straub, J Chem. Phys, 132, 224107 (2010).
 
 :link(Malolepsza)