Fix markdown syntax

docs/30.md

@@ -33,8 +33,7 @@ github：[https://github.com/apachecn/spark-doc-zh](https://github.com/apachecn/
 | 是 | 100% | Structured Streaming | structured-streaming-programming-guide.md | 1 天 | 2017-07-21 | 2017-07-21 | [@chenyyx](https://github.com/chenyyx)（Joy yx）|  |
 | 是 | 100% | Mlib(Machine Learning) | ml-guide.md | 1 天 | 2017-07-20 | 2017-07-20 | [@chenyyx](https://github.com/chenyyx)（Joy yx）|  |
 | 是 | 100% | GraphX(Graph Processing) | graphx-programming-guide.md | 1 天 | 2017-07-21 | 2017-07-21 | [@jiangzhonglian](https://github.com/jiangzhonglian)（片刻）|  |
-| 是 | 100% | SparkR(R on Spark) | sparkr.md | 1 天 | 2017-07-24 | 2017-07-24 | [@kris37](https://github.com/kris37)（kris37）
-[@wangyangting](https://github.com/wangyangting)（那伊抹微笑）|  |
+| 是 | 100% | SparkR(R on Spark) | sparkr.md | 1 天 | 2017-07-24 | 2017-07-24 | [@kris37](https://github.com/kris37)（kris37）<br>[@wangyangting](https://github.com/wangyangting)（那伊抹微笑）|  |
 | 是 | 100% | ◢ Deploying |  |  |  |  |  |  |
 | 是 | 100% | Overview | cluster-overview.md | 1 天 | 2017-07-20 | 2017-07-20 | [@huangtianan](https://github.com/huangtianan)（huangtianan）|  |
 | 是 | 100% | Submitting Applications | submitting-applications.md | 1 天 | 2017-07-20 | 2017-07-20 | [@sehriff](https://github.com/sehriff)（sehriff）|  |
@@ -42,8 +41,7 @@ github：[https://github.com/apachecn/spark-doc-zh](https://github.com/apachecn/
 | 是 | 100% | Mesos | running-on-mesos.md | 1 天 | 2017-07-19 | 2017-07-19 | [@chenyyx](https://github.com/chenyyx)（Joy yx）|  |
 | 是 | 100% | YARN | running-on-yarn.md | 1 天 | 2017-07-19 | 2017-07-19 | [@wangyangting](https://github.com/wangyangting)（那伊抹微笑）|  |
 | 是 | 100% | ◢ More |  |  |  |  |  |  |
-| 是 | 100% | Configuration | configuration.md | 1 天 | 2017-07-25 | 2017-07-25 | [@chenyyx](https://github.com/chenyyx)（Joy yx）
-[@jiangzhonglian](https://github.com/jiangzhonglian)（片刻）|  |
+| 是 | 100% | Configuration | configuration.md | 1 天 | 2017-07-25 | 2017-07-25 | [@chenyyx](https://github.com/chenyyx)（Joy yx）<br>[@jiangzhonglian](https://github.com/jiangzhonglian)（片刻）|  |
 | 是 | 100% | Monitoring | monitoring.md | 1 天 | 2017-07-19 | 2017-07-19 | [@jiangzhonglian](https://github.com/jiangzhonglian)（片刻）|  |
 | 是 | 100% | Tuning Guide | tuning.md | 1 天 | 2017-07-20 | 2017-07-20 | [@jiangzhonglian](https://github.com/jiangzhonglian)（片刻）|  |
 | 是 | 100% | Job Scheduling | job-scheduling.md | 1 天 | 2017-07-27 | 2017-07-27 | [@stealthsMrs](https://github.com/stealthsMrs)（stealthsMrs）|  |