Update README

README.md

@@ -21,33 +21,32 @@ This package is a work in progress. Here are some examples of the interface:
 julia> using ITensors, ITensorMPS, ITensorInfiniteMPS
 
 julia> s = siteinds("S=1/2", 3)
-3-element Array{Index{Int64},1}:
- (dim=2|id=652|"S=1/2,Site,n=1")
- (dim=2|id=984|"S=1/2,Site,n=2")
- (dim=2|id=569|"S=1/2,Site,n=3")
+3-element Vector{Index{Int64}}:
+ (dim=2|id=988|"S=1/2,Site,n=1")
+ (dim=2|id=220|"S=1/2,Site,n=2")
+ (dim=2|id=650|"S=1/2,Site,n=3")
 
 julia> ψ = InfiniteMPS(s) # Infinite MPS with 3-site unit cell
 InfiniteMPS
-[1] IndexSet{3} (dim=1|id=317|"Link,c=0,l=3") (dim=2|id=652|"S=1/2,Site,c=1,n=1") (dim=1|id=77|"Link,c=1,l=1")
-[2] IndexSet{3} (dim=1|id=77|"Link,c=1,l=1") (dim=2|id=984|"S=1/2,Site,c=1,n=2") (dim=1|id=868|"Link,c=1,l=2")
-[3] IndexSet{3} (dim=1|id=868|"Link,c=1,l=2") (dim=2|id=569|"S=1/2,Site,c=1,n=3") (dim=1|id=317|"Link,c=1,l=3")
-
+[1] ((dim=1|id=108|"Link,c=0,l=3"), (dim=2|id=988|"S=1/2,Site,c=1,n=1"), (dim=1|id=112|"Link,c=1,l=1"))
+[2] ((dim=1|id=112|"Link,c=1,l=1"), (dim=2|id=220|"S=1/2,Site,c=1,n=2"), (dim=1|id=429|"Link,c=1,l=2"))
+[3] ((dim=1|id=429|"Link,c=1,l=2"), (dim=2|id=650|"S=1/2,Site,c=1,n=3"), (dim=1|id=108|"Link,c=1,l=3"))
 
 julia> ψ[2] == replacetags(ψ[5], "c=2" => "c=1") # Indexing outside of the unit cell gets tensors from other unit cells
 true
 
 julia> ψ₁ = ψ[1:3] # Create a finite MPS from the tensors of the first unit cell
 MPS
-[1] IndexSet{3} (dim=1|id=317|"Link,c=0,l=3") (dim=2|id=652|"S=1/2,Site,c=1,n=1") (dim=1|id=77|"Link,c=1,l=1")
-[2] IndexSet{3} (dim=1|id=77|"Link,c=1,l=1") (dim=2|id=984|"S=1/2,Site,c=1,n=2") (dim=1|id=868|"Link,c=1,l=2")
-[3] IndexSet{3} (dim=1|id=868|"Link,c=1,l=2") (dim=2|id=569|"S=1/2,Site,c=1,n=3") (dim=1|id=317|"Link,c=1,l=3")
+[1] ((dim=1|id=108|"Link,c=0,l=3"), (dim=2|id=988|"S=1/2,Site,c=1,n=1"), (dim=1|id=112|"Link,c=1,l=1"))
+[2] ((dim=1|id=112|"Link,c=1,l=1"), (dim=2|id=220|"S=1/2,Site,c=1,n=2"), (dim=1|id=429|"Link,c=1,l=2"))
+[3] ((dim=1|id=429|"Link,c=1,l=2"), (dim=2|id=650|"S=1/2,Site,c=1,n=3"), (dim=1|id=108|"Link,c=1,l=3"))
 
 
 julia> ψ₂ = ψ[4:6] # Create a finite MPS from the tensors of the second unit cell
 MPS
-[1] IndexSet{3} (dim=1|id=317|"Link,c=1,l=3") (dim=2|id=652|"S=1/2,Site,c=2,n=1") (dim=1|id=77|"Link,c=2,l=1")
-[2] IndexSet{3} (dim=1|id=77|"Link,c=2,l=1") (dim=2|id=984|"S=1/2,Site,c=2,n=2") (dim=1|id=868|"Link,c=2,l=2")
-[3] IndexSet{3} (dim=1|id=868|"Link,c=2,l=2") (dim=2|id=569|"S=1/2,Site,c=2,n=3") (dim=1|id=317|"Link,c=2,l=3")
+[1] ((dim=1|id=108|"Link,c=1,l=3"), (dim=2|id=988|"S=1/2,Site,c=2,n=1"), (dim=1|id=112|"Link,c=2,l=1"))
+[2] ((dim=1|id=112|"Link,c=2,l=1"), (dim=2|id=220|"S=1/2,Site,c=2,n=2"), (dim=1|id=429|"Link,c=2,l=2"))
+[3] ((dim=1|id=429|"Link,c=2,l=2"), (dim=2|id=650|"S=1/2,Site,c=2,n=3"), (dim=1|id=108|"Link,c=2,l=3"))
 ```
 Useful operations like gauging and optimization are in progress, so stay tuned!