Fix some typos

[singiamtel]

Please describe your fix:

Fix typos

Bug:

N/A

Testing:

N/A

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation where necessary
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules
• I have split off unrelated changes into their own PRs and done my best to make this PR as
  focused as possible while still being useful

[scheibo]

oof. thanks!