content: rename articles to reinforce convention of short URLs

The Go blog started out on Blogger
(http://web.archive.org/web/20100325005843/http://blog.golang.org/).
Later, we moved to the current self-hosted blog server
with extra Go-specific functionality like playground snippets.

The old Blogger posts have very long URLs that Blogger chose
for us, such as "go-programming-language-turns-two" or
"two-go-talks-lexical-scanning-in-go-and", predating
the convention of giving posts shorter, more share-friendly,
typeable names.

The conversion of the old Blogger posts also predated
the convention of putting supporting files in a subdirectory.

The result is that although we've established new conventions,
you wouldn't know by listing the directory - the old Blogger
content presents a conflicting picture.

This commit renames the posts with very long names
to have shorter, more share-friendly names, and it moves
all supporting files to subdirectories. It also adds a README
documenting the conventions.

For example, blog.golang.org/go-programming-language-turns-two
is now blog.golang.org/2years, matching our more recent birthday
post URLs, and its supporting files are moved to the new 2years/ directory.

The old URLs redirect to the new ones.

Change-Id: I9f46a790c2c8fab8459aeda73d4e3d2efc86d88f
Reviewed-on: https://go-review.googlesource.com/c/blog/+/223599
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/content/tour.article b/content/tour.article
new file mode 100644
index 0000000..a57725e
--- /dev/null
+++ b/content/tour.article
@@ -0,0 +1,23 @@
+# Learn Go from your browser
+4 Oct 2011
+Tags: playground, tour
+Summary: Announcing the Go tour, https://tour.golang.org/.
+OldURL: /learn-go-from-your-browser
+
+Andrew Gerrand
+
+##
+
+We are excited to announce [A Tour of Go](https://tour.golang.org/),
+a guided tour of the Go programming language you can run from your browser.
+
+The tour is hands-on, demonstrating the language through code samples that you can modify,
+compile, and run from the tour itself.
+(The technology behind the [Go Playground](https://golang.org/doc/play/) does the work.)
+
+The tour has three sections. The first section covers basic syntax and data structures;
+the second discusses methods and interfaces;
+and the third introduces Go's concurrency primitives.
+Each section concludes with a few exercises so you can practice what you've learned.
+
+So, what are you waiting for? [Get started now!](https://tour.golang.org/)