Fix typos

Author: lkdvos

docs/src/man/algorithms.md

@@ -234,22 +234,22 @@ often referred to as the 'Chepiga ansatz', named after one of the authors of thi
 This is supported via the following syntax:
 
 ```@example excitations
-g = 1.0
+g = 10.0
 L = 16
 H = transverse_field_ising(FiniteChain(L); g)
 ψ₀ = FiniteMPS(L, ComplexSpace(2), ComplexSpace(32))
 ψ, envs, = find_groundstate(ψ₀, H; verbosity=0)
 E₀ = real(sum(expectation_value(ψ, H, envs)))
 Es, ϕs = excitations(H, ChepigaAnsatz(), ψ, envs; num=1)
-isapprox(Es[1], 2(g - 1); rtol=1e-2) # infinite analytical result
+isapprox(Es[1] - E₀, 2(g - 1); rtol=1e-2) # infinite analytical result
 ```
 
 In order to improve the accuracy, a two-site version also exists, which varies two
 neighbouring sites:
 
 ```@example excitations
 Es, ϕs = excitations(H, ChepigaAnsatz2(), ψ, envs; num=1)
-isapprox(Es[1], 2(g - 1); rtol=1e-2) # infinite analytical result
+isapprox(Es[1] - E₀, 2(g - 1); rtol=1e-2) # infinite analytical result
 ```
 
 ## `changebonds`

docs/src/man/states.md

@@ -117,7 +117,7 @@ state = InfiniteMPS(phys_spaces, virt_spaces)
 
 Note that the code above creates an `InfiniteMPS` with a two-site unit cell, where the given virtual spaces are located to the right of their respective sites.
 
-### Gauging
+### Gauging and canonical forms
 
 Much like for `FiniteMPS`, we can again query the gauged tensors `AL`, `AR`, `C` and `AC`.
 Here however, the implementation is much easier, since they all have to be recomputed whenever a single tensor changes.