[Docs] Update docs to ITensorMPS (#1603)

Author: ryanlevy

docs/src/HDF5FileFormats.md

@@ -156,7 +156,7 @@ Datasets and Subgroups:
 
 ## [MPS](@id mps_hdf5)
 
-HDF5 file format for `ITensors.MPS`
+HDF5 file format for `ITensorMPS.MPS`
 
 Attributes:
 * "version" = 1
@@ -171,7 +171,7 @@ Datasets and Subgroups:
 
 ## [MPO](@id mpo_hdf5)
 
-HDF5 file format for `ITensors.MPO`
+HDF5 file format for `ITensorMPS.MPO`
 
 Attributes:
 * "version" = 1

docs/src/Observer.md

@@ -70,7 +70,7 @@ In our example, we will just compare the `energy` keyword
 argument to the `last_energy` variable held inside the `DemoObserver`:
 
 ```julia
-function ITensors.checkdone!(o::DemoObserver;kwargs...)
+function ITensorMPS.checkdone!(o::DemoObserver;kwargs...)
   sw = kwargs[:sweep]
   energy = kwargs[:energy]
   if abs(energy-o.last_energy)/abs(energy) < o.energy_tol
@@ -110,7 +110,7 @@ that prints out some of the information above, but in a more realistic setting o
 could use the MPS `psi` to perform essentially arbitrary measurements.
 
 ```julia
-function ITensors.measure!(o::DemoObserver; kwargs...)
+function ITensorMPS.measure!(o::DemoObserver; kwargs...)
   energy = kwargs[:energy]
   sweep = kwargs[:sweep]
   bond = kwargs[:bond]
@@ -148,7 +148,7 @@ mutable struct DemoObserver <: AbstractObserver
    DemoObserver(energy_tol=0.0) = new(energy_tol,1000.0)
 end
 
-function ITensors.checkdone!(o::DemoObserver;kwargs...)
+function ITensorMPS.checkdone!(o::DemoObserver;kwargs...)
   sw = kwargs[:sweep]
   energy = kwargs[:energy]
   if abs(energy-o.last_energy)/abs(energy) < o.energy_tol
@@ -160,7 +160,7 @@ function ITensors.checkdone!(o::DemoObserver;kwargs...)
   return false
 end
 
-function ITensors.measure!(o::DemoObserver; kwargs...)
+function ITensorMPS.measure!(o::DemoObserver; kwargs...)
   energy = kwargs[:energy]
   sweep = kwargs[:sweep]
   bond = kwargs[:bond]

docs/src/examples/DMRG.md

@@ -383,7 +383,7 @@ using ITensors, ITensorMPS
 mutable struct EntanglementObserver <: AbstractObserver
 end
 
-function ITensors.measure!(o::EntanglementObserver; bond, psi, half_sweep, kwargs...)
+function ITensorMPS.measure!(o::EntanglementObserver; bond, psi, half_sweep, kwargs...)
   wf_center, other = half_sweep==1 ? (psi[bond+1],psi[bond]) : (psi[bond],psi[bond+1])
   U,S,V = svd(wf_center, uniqueinds(wf_center,other))
   SvN = 0.0
@@ -406,7 +406,7 @@ using ITensors, ITensorMPS
 mutable struct EntanglementObserver <: AbstractObserver
 end
 
-function ITensors.measure!(o::EntanglementObserver; bond, psi, half_sweep, kwargs...)
+function ITensorMPS.measure!(o::EntanglementObserver; bond, psi, half_sweep, kwargs...)
   wf_center, other = half_sweep==1 ? (psi[bond+1],psi[bond]) : (psi[bond],psi[bond+1])
   U,S,V = svd(wf_center, uniqueinds(wf_center,other))
   SvN = 0.0
@@ -481,7 +481,7 @@ using ITensors, ITensorMPS
 mutable struct SizeObserver <: AbstractObserver
 end
 
-function ITensors.measure!(o::SizeObserver; bond, half_sweep, psi, projected_operator, kwargs...)
+function ITensorMPS.measure!(o::SizeObserver; bond, half_sweep, psi, projected_operator, kwargs...)
   if bond==1 && half_sweep==2
     psi_size =  Base.format_bytes(Base.summarysize(psi))
     PH_size =  Base.format_bytes(Base.summarysize(projected_operator))
@@ -503,7 +503,7 @@ using ITensors, ITensorMPS
 mutable struct SizeObserver <: AbstractObserver
 end
 
-function ITensors.measure!(o::SizeObserver; bond, sweep, half_sweep, psi, projected_operator, kwargs...)
+function ITensorMPS.measure!(o::SizeObserver; bond, sweep, half_sweep, psi, projected_operator, kwargs...)
   if bond==1 && half_sweep==2
     psi_size =  Base.format_bytes(Base.summarysize(psi))
     PH_size =  Base.format_bytes(Base.summarysize(projected_operator))