Move pages under tldr, lint run.sh, update docs

tldr/go-doc

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# go doc
+
+> View documentation for a package or symbol.
+> More information: <https://golang.org/cmd/go/#hdr-Show_documentation_for_package_or_symbol>.
+
+- View documentation for the current package:
+
+`go doc`
+
+- Show package documentation and exported symbols:
+
+`go doc {{encoding/json}}`
+
+- Show also documentation of symbols:
+
+`go doc -all {{encoding/json}}`
+
+- Show also sources:
+
+`go doc -all -src {{encoding/json}}`
+
+- Show a specific symbol:
+
+`go doc -all -src {{encoding/json.Number}}`