New Features

• feat(env): add config env source (#1181)
• feat(examples/i18n) add i18n example (#1157)
• feat(config): support Resolver for config variable placeholders (#1135)

Bug Fixes

• fix(transport/http): fixed the problem of getting empty node list (#1206)
• fix(examples/config): fixed spelling mistake (#1186)
• fix(examples/cors): method misuse (#1184)
• fix(config): strconv.ParseFloat use correct bitSize
• fix(cmd/run): fix the problem of looking for the cmd directory outside the project (#1166)

Others

• add router group for http server (#1208)
• add sub router for http
• use "and" replace "sub" (#1207)
• add gin examples
• upgrade consul (#1205)
• typo: modify the comments of the proto-gen-go-errors (#1204)
• chore(config/file): add tests for file watcher (#1199)
• docs: add wechat official account image to the Chinese document (#1190)
• style(transport): remove duplicate get path code (#1188)
• docs: default documents points to the english document (#1180)
• ci(github action): use golangci-lint to replace the deprecated golint (#1175)
• docs: Added a list of acknowledgments that influence on kratos's design. (#1171)
• examples: add echo example (#1162)
• chore(example/blog): add ent tracing, and print the original SQL (#1163)