fix typo

Author: ytdHuang

QuantumToolbox.jl/time_evolution/lowrank.qmd

@@ -210,7 +210,7 @@ $$
 \chi = \operatorname{Tr}(S^{-1} L).
 $$
 
-Finally, `Δt` specifies the checkpointing interval by which the simulation is rewinded upon the basis expansion.
+Finally, `Δt` specifies the checkpointing interval by which the simulation is rewound upon the basis expansion.
 
 Not directly related to the basis expansion, but still important for the stability of the algorithm, are the options `atol_inv` (the tolerance for the inverse of the overlap matrix) and `alg` (the ODE solver).