message: doc: fix some punctuation in README.md
  Typo fixes
diff: @@ -61,8 +61,8 @@ Further, we realized that this would allow us to build the terminal's renderer a
  ## I built and ran the new Terminal, but I just get a blank window app!
  -Make sure you are building for your computer's architecture. If your box has a 64-bit Windows change your Solution Platform to x64.
  -To check your OS architecture go to Settings -> System -> About (or Win+X -> System) and under `Device specifications` check for the `System type`
  +Make sure you are building for your computer's architecture. If your box has a 64-bit Windows, change your Solution Platform to x64.
  +To check your OS architecture go to Settings -> System -> About (or Win+X -> System) and under `Device specifications` check for the `System type`.
  ## I built and ran the new Terminal, but it looks just like the old console! What gives?
  @@ -79,7 +79,7 @@ Secondly, try pressing <kbd>Ctrl</kbd> + <kbd>T</kbd>. The tabs are hidden when
  ## Debugging
  -* To debug in VS, right click on CascadiaPackage (from VS Solution Explorer) and go to properties, in the Debug menu, change "Application process" and "Background task process" to "Native Only"
  +* To debug in VS, right click on CascadiaPackage (from VS Solution Explorer) and go to properties, in the Debug menu, change "Application process" and "Background task process" to "Native Only".
  ## Contributing
  @@ -115,8 +115,8 @@ If you would like to ask a question that you feel doesn't warrant an issue (yet)
  ## Build Prerequisites
  -* You must be running Windows 1903 (build >= 10.0.18362.0) or above in order to run Windows Terminal
  -* You must have the [1903 SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk) (build 10.0.18362.0) installed
  +* You must be running Windows 1903 (build >= 10.0.18362.0) or above in order to run Windows Terminal.
  +* You must have the [1903 SDK](https://developer.microsoft.com/en-us/windows/downloads/windows-10-sdk) (build 10.0.18362.0) installed.
  * You must have at least [VS 2017](https://visualstudio.microsoft.com/downloads/) installed.
  * You must install the following Workloads via the VS Installer. If you're running VS 2019, opening the solution will [prompt you to install missing components automatically](https://devblogs.microsoft.com/setup/configure-visual-studio-across-your-organization-with-vsconfig/).
  - Desktop Development with C++
  