Demo: update demo docs and record.

Author: xiaoxq

.gitattributes

@@ -5,6 +5,7 @@
 *.jpg filter=lfs diff=lfs merge=lfs -text
 *.pcd filter=lfs diff=lfs merge=lfs -text
 *.png filter=lfs diff=lfs merge=lfs -text
+*.record filter=lfs diff=lfs merge=lfs -text
 
 # TODO(all): Currently we have some models named as *.md which should be renamed
 # and tracked.

docs/demo_guide/README.md

@@ -37,14 +37,13 @@ Setup steps:
     bash scripts/bootstrap.sh
     ```
 
-5. Now you can play the rosbag:
+5. Now you can play the record:
 
     ```
-    sudo python docs/demo_guide/rosbag_helper.py demo_2.0.bag #download rosbag
-    rosbag play demo_2.0.bag --loop
+    cyber_recorder play -f docs/demo_guide/demo_3.5.record --loop
     ```
 
-    The `--loop` option enables rosbag to keep playing the bag in a loop
+    The `--loop` option enables record to keep playing the bag in a loop
     playback mode.
 
 6. Open Chrome and go to **localhost:8888** to access Apollo Dreamview, which

docs/demo_guide/README_cn.md

@@ -18,11 +18,10 @@ Apollo演示的安装步骤：
     bash docker/scripts/dev_into.sh
     ```
 
-3. 运行如下命令回放位rosbag:
+3. 运行如下命令回放record:
 
     ```
-    python docs/demo_guide/rosbag_helper.py demo_1.5.bag # 下载rosbag
-    rosbag play demo_1.5.bag --loop
+    cyber_recorder play -f docs/demo_guide/demo_3.5.record --loop
     ```
 
     选项 `--loop` 用于设置循环回放模式.

docs/demo_guide/demo_3.5.record

@@ -0,0 +1,3 @@
+version https://git-lfs.github.com/spec/v1
+oid sha256:7bd3d160eeb8ff85953df54c93be9c4fe9f1e87ab5e5846a42417633151f1465
+size 96246211