fix typos and indentations

doc/src/bond_none.rst

@@ -13,7 +13,7 @@ Syntax
 Examples
 """"""""
 
-.. code-blocK:: LAMMPS
+.. code-block:: LAMMPS
 
    bond_style none
 

doc/src/compute_saed.rst

@@ -57,8 +57,8 @@ is computed from the structure factor F using the equations:
 
 .. math::
 
-  I = & \frac{F^{*}F}{N} \\
-  F(\mathbf{k}) = & \sum_{j=1}^{N}f_j(\theta)exp(2\pi i \mathbf{k} \cdot \mathbf{r}_j)
+   I = & \frac{F^{*}F}{N} \\
+   F(\mathbf{k}) = & \sum_{j=1}^{N}f_j(\theta)exp(2\pi i \mathbf{k} \cdot \mathbf{r}_j)
 
 Here, K is the location of the reciprocal lattice node, :math:`r_j` is the
 position of each atom, :math:`f_j` are atomic scattering factors.
@@ -116,8 +116,8 @@ The analytic approximation is computed using the formula
 
 .. math::
 
-  f_j\left ( \frac{sin(\theta)}{\lambda} \right )=\sum_{i}^{5}
-  a_i exp\left ( -b_i \frac{sin^{2}(\theta)}{\lambda^{2}} \right )
+   f_j\left ( \frac{sin(\theta)}{\lambda} \right )=\sum_{i}^{5}
+   a_i exp\left ( -b_i \frac{sin^{2}(\theta)}{\lambda^{2}} \right )
 
 Coefficients parameterized by :ref:`(Fox) <Fox>` are assigned for each
 atom type designating the chemical symbol and charge of each atom

doc/src/pair_meam_spline.rst

@@ -16,7 +16,7 @@ Syntax
 Examples
 """"""""
 
-.. code:: LAMMPS
+.. code-block:: LAMMPS
 
    pair_style meam/spline
    pair_coeff * * Ti.meam.spline Ti