fgm/go__socialnetwork: A fork of the code in the Go web services book @ chapter2

Frederic G. MARAND 6b151121d5 Ch2 pp82-83: tagging structs for YAML.		7 lat temu
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ex3_tag_yaml.go	6b151121d5 Ch2 pp82-83: tagging structs for YAML.	7 lat temu