Another error fixed ...

src/poisson_transient.jl

@@ -96,7 +96,7 @@ op_C = TransientConstantFEOperator(m₀,a₀,b₀,U,V)
 # Once we have the FE operator defined, we proceed with the definition of the transient solver. First, we define a linear solver to be used at each time step. Here we use the `LUSolver`, but other choices are possible.
 linear_solver = LUSolver()
 
-# Then, we define the ODE solver. That is, the scheme that will be used for the time integration. In this tutorial we use the `Steamed` with $\theta = 0.5$, resulting in a 2nd order scheme. The `ThetaMethod` function receives the linear solver, the time step size $\Delta t$ (constant) and the value of $\theta$.
+# Then, we define the ODE solver. That is, the scheme that will be used for the time integration. In this tutorial we use the `ThetaMethod` with $\theta = 0.5$, resulting in a 2nd order scheme. The `ThetaMethod` function receives the linear solver, the time step size $\Delta t$ (constant) and the value of $\theta$.
 Δt = 0.05
 θ = 0.5
 ode_solver = ThetaMethod(linear_solver,Δt,θ)