Merge pull request #1560 from dragontree101/doc_mistake_key

key改成大写，小写不会生效

deployer/src/main/resources/canal.properties

@@ -78,8 +78,8 @@ canal.instance.tsdb.snapshot.interval = 24
 canal.instance.tsdb.snapshot.expire = 360
 
 # aliyun ak/sk , support rds/mq
-canal.aliyun.accesskey =
-canal.aliyun.secretkey =
+canal.aliyun.accessKey =
+canal.aliyun.secretKey =
 
 #################################################
 ######### 		destinations		############# 
@@ -117,4 +117,4 @@ canal.mq.compressionType = none
 canal.mq.acks = all
 # use transaction for kafka flatMessage batch produce
 canal.mq.transaction = false
-#canal.mq.properties. =
+#canal.mq.properties. =