Spelling fix

Author: mikeckennedy

data/README.md

@@ -12,4 +12,4 @@ If you are using an authenticated connection on another server, this more verbos
 mongorestore -u admin -p <mypassword> --authenticationDatabase 'admin' --ssl --host <my_hostname> --sslCAFile mongod.crt --sslPEMKeyFile mongod.pem --drop --db DATABASE /path/to/unziped/dir
 ```
 
-Note this references this two MongoDB certifications for connecting. You can altermantively use the `--sslAllowInvalidCertificates` flag to ignore them.
+Note this references this two MongoDB certifications for connecting. You can alternatively use the `--sslAllowInvalidCertificates` flag to ignore them.