[x/blog] content: fix playground.article note

Right now https://blog.golang.org/playground looks like:

Inside the Go Playground

   Andrew Gerrand and _NOTE: This article does not describe the current version of the Go Playground._
   12 December 2013

The note is not an author.
(The blog program prints a warning about this mistake on startup,
without this CL.)

Change-Id: I2ea605e2f069f4e9c8fb76de1c32ef04d3f85a5d
Reviewed-on: https://go-review.googlesource.com/c/blog/+/284833
Trust: Russ Cox <rsc@golang.org>
Run-TryBot: Russ Cox <rsc@golang.org>
Reviewed-by: Russ Cox <rsc@golang.org>
X-Blog-Commit: 73406574fd69fb5129b350eba3e8d41710f25751
1 file changed
tree: 87bb50c9d9dd53d11d68fd6f661fc5b4517a4feb
  1. blog/
  2. AUTHORS
  3. CONTRIBUTING.md
  4. CONTRIBUTORS
  5. LICENSE
  6. PATENTS
  7. README.md
README.md

Go Website

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