Fix Solver::Options in documentation

Change-Id: Ia01fdba7561aac539ce96f09b3d404cbe061de11

docs/source/nnls_solving.rst

diff --git a/docs/source/nnls_solving.rst b/docs/source/nnls_solving.rst
index 159bff0..4d74fe5 100644
--- a/docs/source/nnls_solving.rst
+++ b/docs/source/nnls_solving.rst
@@ -986,7 +986,7 @@
 
 .. member:: int Solver::Options::max_lbfgs_rank
 
-   Default: 20
+   Default: ``20``
 
    The L-BFGS hessian approximation is a low rank approximation to the
    inverse of the Hessian matrix. The rank of the approximation
@@ -1054,6 +1054,8 @@
 
 .. member:: double Solver::Options::min_line_search_step_size
 
+   Default: ``1e-9``
+
    The line search terminates if:
 
    .. math:: \|\Delta x_k\|_\infty < \text{min_line_search_step_size}
@@ -1208,7 +1210,8 @@
 
 .. member:: double Solver::Options::max_solver_time_in_seconds
 
-   Default: ``1e6``
+   Default: ``1e9``
+
    Maximum amount of time for which the solver should run.
 
 .. member:: int Solver::Options::num_threads
@@ -1376,7 +1379,7 @@
 
 .. member:: DenseLinearAlgebraLibrary Solver::Options::dense_linear_algebra_library_type
 
-   Default:``EIGEN``
+   Default: ``EIGEN``
 
    Ceres supports using multiple dense linear algebra libraries for
    dense matrix factorizations. Currently ``EIGEN``, ``LAPACK`` and
@@ -1481,6 +1484,8 @@
 
 .. member:: bool Solver::Options::dynamic_sparsity
 
+   Default: ``false``
+
    Some non-linear least squares problems are symbolically dense but
    numerically sparse. i.e. at any given state only a small number of
    Jacobian entries are non-zero, but the position and number of
@@ -1686,7 +1691,7 @@
     :member:`Solver::Options::trust_region_problem_dump_format_type` is not
     ``CONSOLE``.
 
-.. member:: DumpFormatType Solver::Options::trust_region_problem_dump_format
+.. member:: DumpFormatType Solver::Options::trust_region_problem_dump_format_type
 
    Default: ``TEXTFILE``
 
@@ -1782,6 +1787,8 @@
 
 .. member:: vector<IterationCallback> Solver::Options::callbacks
 
+   Default: ``empty``
+
    Callbacks that are executed at the end of each iteration of the
    :class:`Minimizer`. They are executed in the order that they are
    specified in this vector.