Add Spanish as site language

Author: jnewbery

_config.yml

@@ -60,4 +60,5 @@ collections:
     output: true
 
 languages:
-  - ja
+  - ja
+  - es

es/blog.md

@@ -0,0 +1,15 @@
+---
+layout: blog
+lang: es
+title: Blog-es
+name: blog-es
+permalink: /es/blog/
+share: false
+version: 1
+---
+
+_Would you like to help translate our publications? See the [CONTRIBUTING
+documentation](https://github.com/bitcoinops/bitcoinops.github.io/blob/master/CONTRIBUTING.md#translations)
+and the [Spanish translation issues and
+PRs](https://github.com/bitcoinops/bitcoinops.github.io/pulls?&q=label%3Alocalization-spanish)
+in our github repo._

es/newsletters.md

@@ -0,0 +1,15 @@
+---
+layout: newsletters
+lang: es
+title: Newsletters-es
+name: newsletters-es
+permalink: /es/newsletters/
+share: false
+version: 1
+---
+
+_Would you like to help translate our newsletters? See the [CONTRIBUTING
+documentation](https://github.com/bitcoinops/bitcoinops.github.io/blob/master/CONTRIBUTING.md#translations)
+and the [Spanish translation issues and
+PRs](https://github.com/bitcoinops/bitcoinops.github.io/pulls?&q=label%3Alocalization-spanish)
+in our github repo._

es/publications.md

@@ -0,0 +1,20 @@
+---
+layout: publications
+lang: es
+title: Publications-es
+name: publications-es
+permalink: /es/publications/
+share: false
+version: 1
+---
+_Would you like to help translate our publications? See the [CONTRIBUTING
+documentation](https://github.com/bitcoinops/bitcoinops.github.io/blob/master/CONTRIBUTING.md#translations)
+and the [Spanish translation issues and
+PRs](https://github.com/bitcoinops/bitcoinops.github.io/pulls?&q=label%3Alocalization-spanish)
+in our github repo._
+
+{:.center}
+Recent publications from our [blog posts][] and [newsletters][].
+
+[blog posts]: /es/blog/
+[newsletters]: /es/newsletters/