Linux Lab released the first candidate version of v0.5

Linux Lab released the first candidate version of v0.5 at the end of June: v0.5-rc1. After three months of development and iteration, after successively releasing rc2 and rc3, the official version of v0.5 was released this time. The supporting Lab management tool Cloud Lab v0.3 and the first Linux Lab video open class will be released simultaneously. More usage will be gradually released in the form of video explanation + demonstration, so stay tuned. This time, I upgraded the development environment to Ubuntu 20.04 and added support for all Loongson processors.