Update concurrency.txt

kstirman · Sam Kleinman · commit c9a40aa7e995 · 2013-03-13T08:25:14.000-04:00
Signed-off-by: Sam Kleinman &lt;samk@10gen.com&gt;
diff --git a/source/faq/concurrency.txt b/source/faq/concurrency.txt
@@ -103,7 +103,7 @@ opportunity to complete.
    MongoDB predicts that the data is not in memory a read operation
    yields its lock while MongoDB loads the data to memory. Once data
    is available in memory, the read will reacquire the lock to
-   completes the operation.
+   complete the operation.
 
 .. _faq-concurrency-operations-locks:
 
