fix typo and grammar errors (oven-sh#5046)

bunfig.toml

@@ -1,8 +1,8 @@
 [test]
 # Large monorepos (like Bun) may want to specify the test directory more specifically 
-# By default, `bun test` scans every single folder recurisvely which, if you
-# have a gigantic submodule (like WebKit), it has to do lots of directory
+# By default, `bun test` scans every single folder recursively which, if you
+# have a gigantic submodule (like WebKit), requires lots of directory
 # traversals
 #
-# Instead, we can just make it scan only the test directory for Bun's runtime tests
+# Instead, we can only scan the test directory for Bun's runtime tests
 root = "test"