Fix line lengths to be under 100 characters

doc/content/source/actions/NtAction.md

@@ -1,26 +1,33 @@
 # NtAction
 
 !alert note
-This action sets up ONLY the variables, kernels, and BCs for neutron diffusion, NOT the variables, kernels, and BCs for precursor tracking. 
+This action sets up ONLY the variables, kernels, and BCs for neutron diffusion,
+NOT the variables, kernels, and BCs for precursor tracking. 
 To generate these, see [PrecursorAction](PrecursorAction.md).
 
 !syntax description /Nt/NtAction
 
 ## Overview
 
-```NtAction``` greatly reduces input file length and complexity by automatically setting up variables, kernels, and BCs for the neutron diffusion equations.
-When including only the required input parameters, this action constructs the neutron group variables and their associated kernels:
-[SigmaR](SigmaR.md), [GroupDiffusion](GroupDiffusion.md), [InScatter](InScatter.md), and [CoupledFissionKernel](CoupledFissionKernel.md).
-With ```account_delayed``` set to ```True```, [DelayedNeutronSource](DelayedNeutronSource.md) is also constructed,
+```NtAction``` greatly reduces input file length and complexity by automatically
+setting up variables, kernels, and BCs for the neutron diffusion equations.
+When including only the required input parameters, this action constructs the
+neutron group variables and their associated kernels:
+[SigmaR](SigmaR.md), [GroupDiffusion](GroupDiffusion.md),
+[InScatter](InScatter.md), and [CoupledFissionKernel](CoupledFissionKernel.md).
+With ```account_delayed``` set to ```True```,
+[DelayedNeutronSource](DelayedNeutronSource.md) is also constructed,
 otherwise this kernel is not constructed and the simulation does not consider
 the delayed neutron precursor effects on the neutron flux distributions.
 
-For more information regarding the use of ```NtAction``` please refer to the tutorials located [here](tutorials.md),
-specifically the +Multiphysics Reactor Simulations+ section.
+For more information regarding the use of ```NtAction``` please refer to the
+tutorials located [here](tutorials.md), specifically the +Multiphysics Reactor
+Simulations+ section.
 
 ## Example Input File Syntax
 
-An example input file without the ```NtAction```, showing only the portion affected by the action:
+An example input file without the ```NtAction```, showing only the portion
+affected by the action:
 
 !listing tutorial/eigenvalue/nts.i 
 	start=Variables end=Materials remove=Precursors