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

tldr/go-env

@@ -0,0 +1,25 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# go env
+
+> Manage environment variables used by the Go toolchain.
+> More information: <https://golang.org/cmd/go/#hdr-Print_Go_environment_information>.
+
+- Show all environment variables:
+
+`go env`
+
+- Show a specific environment variable:
+
+`go env {{GOPATH}}`
+
+- Set an environment variable to a value:
+
+`go env -w {{GOBIN}}={{path/to/directory}}`
+
+- Reset an environment variable's value:
+
+`go env -u {{GOBIN}}`