diff --git a/doc/src/angle_zero.rst b/doc/src/angle_zero.rst
index e6b485bc95..e5dab4e3a0 100644
--- a/doc/src/angle_zero.rst
+++ b/doc/src/angle_zero.rst
@@ -1,13 +1,13 @@
-.. index:: angle\_style zero
+.. index:: angle_style zero
 
-angle\_style zero command
-=========================
+angle_style zero command
+========================
 
 Syntax
 """"""
 
 
-.. parsed-literal::
+.. code-block:: LAMMPS
 
    angle_style zero *nocoeff*
 
@@ -15,12 +15,12 @@ Examples
 """"""""
 
 
-.. parsed-literal::
+.. code-block:: LAMMPS
 
    angle_style zero
    angle_style zero nocoeff
-   angle_coeff \*
-   angle_coeff \* 120.0
+   angle_coeff *
+   angle_coeff * 120.0
 
 Description
 """""""""""
@@ -32,14 +32,14 @@ other commands.
 As an example, the :doc:`compute angle/local <compute_angle_local>`
 command can be used to compute the theta values for the list of
 triplets of angle atoms listed in the data file read by the
-:doc:`read\_data <read_data>` command.  If no angle style is defined,
+:doc:`read_data <read_data>` command.  If no angle style is defined,
 this command cannot be used.
 
 The optional *nocoeff* flag allows to read data files with AngleCoeff
-section for any angle style. Similarly, any angle\_coeff commands
+section for any angle style. Similarly, any :doc:`angle_coeff <angle_coeff>` commands
 will only be checked for the angle type number and the rest ignored.
 
-Note that the :doc:`angle\_coeff <angle_coeff>` command must be used for
+Note that the :doc:`angle_coeff <angle_coeff>` command must be used for
 all angle types. If specified, there can be only one value, which is
 going to be used to assign an equilibrium angle, e.g. for use with
 :doc:`fix shake <fix_shake>`.
@@ -51,11 +51,6 @@ Restrictions
 Related commands
 """"""""""""""""
 
-:doc:`angle\_style none <angle_none>`
+:doc:`angle_style none <angle_none>`
 
 **Default:** none
-
-
-.. _lws: http://lammps.sandia.gov
-.. _ld: Manual.html
-.. _lc: Commands_all.html
diff --git a/doc/txt/angle_zero.txt b/doc/txt/angle_zero.txt
deleted file mode 100644
index c6c1958ec8..0000000000
--- a/doc/txt/angle_zero.txt
+++ /dev/null
@@ -1,49 +0,0 @@
-"LAMMPS WWW Site"_lws - "LAMMPS Documentation"_ld - "LAMMPS Commands"_lc :c
-
-:link(lws,http://lammps.sandia.gov)
-:link(ld,Manual.html)
-:link(lc,Commands_all.html)
-
-:line
-
-angle_style zero command :h3
-
-[Syntax:]
-
-angle_style zero {nocoeff} :pre
-
-[Examples:]
-
-angle_style zero
-angle_style zero nocoeff
-angle_coeff *
-angle_coeff * 120.0 :pre
-
-[Description:]
-
-Using an angle style of zero means angle forces and energies are not
-computed, but the geometry of angle triplets is still accessible to
-other commands.
-
-As an example, the "compute angle/local"_compute_angle_local.html
-command can be used to compute the theta values for the list of
-triplets of angle atoms listed in the data file read by the
-"read_data"_read_data.html command.  If no angle style is defined,
-this command cannot be used.
-
-The optional {nocoeff} flag allows to read data files with AngleCoeff
-section for any angle style. Similarly, any angle_coeff commands
-will only be checked for the angle type number and the rest ignored.
-
-Note that the "angle_coeff"_angle_coeff.html command must be used for
-all angle types. If specified, there can be only one value, which is
-going to be used to assign an equilibrium angle, e.g. for use with
-"fix shake"_fix_shake.html.
-
-[Restrictions:] none
-
-[Related commands:]
-
-"angle_style none"_angle_none.html
-
-[Default:] none