misc: Fix spelling issues

Misspellings were identified by:
  https://github.com/marketplace/actions/check-spelling

* Initial corrections based on forbidden patterns from the action
* Additional corrections by Google Chrome auto-suggest
* Some manual corrections
* Adding markdown bullets to readme credits section

Signed-off-by: Josh Soref <2119212+jsoref@users.noreply.github.com>

vmm/src/lib.rs

@@ -1220,7 +1220,7 @@ impl RequestHandler for Vmm {
         event!("vm", "booting");
         let r = {
             trace_scoped!("vm_boot");
-            // If we don't have a config, we can not boot a VM.
+            // If we don't have a config, we cannot boot a VM.
             if self.vm_config.is_none() {
                 return Err(VmError::VmMissingConfig);
             };