fix typo, remove undefined export

Author: lkdvos

src/TensorKit.jl

@@ -82,7 +82,7 @@ export OrthogonalFactorizationAlgorithm, QR, QRpos, QL, QLpos, LQ, LQpos, RQ, RQ
 
 # tensor operations
 export @tensor, @tensoropt, @ncon, ncon, @planar, @plansor
-export scalar, add!, contract!
+export scalar, add!
 
 # truncation schemes
 export notrunc, truncerr, truncdim, truncspace, truncbelow

src/tensors/backends.jl

@@ -11,7 +11,7 @@ For controlling this value, see also [`set_blockscheduler`](@ref) and [`with_blo
 const blockscheduler = ScopedValue{Scheduler}(SerialScheduler())
 
 """
-    cosnt subblockscheduler = ScopedValue{Scheduler}(SerialScheduler())
+    const subblockscheduler = ScopedValue{Scheduler}(SerialScheduler())
 
 The default scheduler used when looping over different subblocks in a tensor.