Fix javadoc (mongodb#393)

does --> doesn't

Author: Andrew

driver-core/src/main/com/mongodb/client/model/Filters.java

@@ -54,7 +54,7 @@ private Filters() {
     }
 
     /**
-     * Creates a filter that matches all documents where the value of _id field equalss the specified value. Note that this does
+     * Creates a filter that matches all documents where the value of _id field equals the specified value. Note that this doesn't
      * actually generate a $eq operator, as the query language doesn't require it.
      *
      * @param value     the value
@@ -69,7 +69,7 @@ public static <TItem> Bson eq(final TItem value) {
     }
 
     /**
-     * Creates a filter that matches all documents where the value of the field name equals the specified value. Note that this does
+     * Creates a filter that matches all documents where the value of the field name equals the specified value. Note that this doesn't
      * actually generate a $eq operator, as the query language doesn't require it.
      *
      * @param fieldName the field name