update README.en.md.

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David_Han 2020-10-26 14:51:22 +08:00 committed by Gitee
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#### Description
Nodelet Core Metapackage
New in Electric: the nodelet packages are now part of nodelet_core. In previous releases, they were part of common.
For documentation on using nodelets, please see the nodelet package. For nodelet libraries similar in function to the topic_tools package, see nodelet_topic_tools.
#### Software Architecture
Software architecture description
nodelet_core
#### Installation
1. xxxx
2. xxxx
3. xxxx
1. Dowload RPM
wget http://121.36.3.168:82/home:/davidhan:/branches:/openEuler:/Mainline/standard_aarch64/aarch64/nodelet_core-1.9.16-0.oe1.aarch64.rpm
2. Install RPM
sudo rpm -ivh nodelet_core-1.9.16-0.oe1.aarch64.rpm
#### Instructions
1. xxxx
2. xxxx
3. xxxx
Exit the nodelet_core file under the /opt/ros/melodic/devel_isolated/ directory , Prove that the software installation is successful
#### Contribution