Commit d7828593 authored by Joel Alenchery's avatar Joel Alenchery

Update README.md

From the memcached Protocol text 
https://github.com/memcached/memcached/blob/master/doc/protocol.txt

"add" means "store this data, but only if the server *doesn't* already hold data for this key".
parent afbc53d3
......@@ -230,7 +230,7 @@ memcached.replace('foo', 'bar', 10, function (err) {
#### memcached.add(key, value, lifetime, callback);
Add the value, only if it's in memcached already.
Add the value, only if it's not in memcached already.
**Arguments**
......
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