text: Title: Proposing a PR to fix a few small typos
  Body: # Issue Type
  
  [x] Bug (Typo)
  
  # Steps to Replicate and Expected Behaviour
  
  - Examine bowtie/tests/test_components.py and observe `instatiation`, however expect to see `instantiation`.
  - Examine bowtie/tests/test_tags.py and observe `instantation`, however expect to see `instantiation`.
  
  # Notes
  
  Semi-automated issue generated by
  https://github.com/timgates42/meticulous/blob/master/docs/NOTE.md
  
  To avoid wasting CI processing resources a branch with the fix has been
  prepared but a pull request has not yet been created. A pull request fixing
  the issue can be prepared from the link below, feel free to create it or
  request @timgates42 create the PR. Alternatively if the fix is undesired please
  close the issue with a small comment about the reasoning.
  
  https://github.com/timgates42/bowtie/pull/new/bugfix_typos
  
  Thanks.
  
  
  