hotfix new tutorial

Author: ChrisRackauckas

docs/src/tutorials/tearing_parallelism.md

@@ -192,7 +192,7 @@ equations(big_rc)
 ```
 
 You see it started as a massive 1051 set of equations. However, after eliminating
-redundencies we arrive at 151 equations:
+redundancies we arrive at 151 equations:
 
 ```julia
 equations(sys)
@@ -216,6 +216,7 @@ equations(sys)
 
  ```julia
  using ModelingToolkit.BipartiteGraphs
+ big_rc = initialize_system_structure(big_rc)
  inc_org = BipartiteGraphs.incidence_matrix(structure(big_rc).graph)
  blt_org = StructuralTransformations.sorted_incidence_matrix(big_rc, only_algeqs=true, only_algvars=true)
  blt_reduced = StructuralTransformations.sorted_incidence_matrix(sys, only_algeqs=true, only_algvars=true)