Run a spellchecker on src/docs/

I'd also like to use this CL as a test for
crbug.com/1257744

Change-Id: Ie958c515680a2a130c257c23f826d5a30a3963ac
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3229977
Commit-Queue: Quinten Yearsley <[email protected]>
Reviewed-by: Andrii Shyshkalov <[email protected]>
Cr-Commit-Position: refs/heads/main@{#933514}
diff --git a/docs/accessibility/brltty.md b/docs/accessibility/brltty.md
index cd921d01..67fa216 100644
--- a/docs/accessibility/brltty.md
+++ b/docs/accessibility/brltty.md
@@ -222,7 +222,7 @@
 
 2. modify the way in which brltty gets run.
 
-In particular, look at the invokation of the minijail in
+In particular, look at the invocation of the minijail in
 
 third_party/chromiumos-overlay/app-accessibility/brltty/files/brltty