Enable Spanish translation

_config.yml

@@ -325,6 +325,12 @@ defaults:
     values:
       permalink: /en_PT/:basename:output_ext
       lang: en-PT
+  - scope:
+      path: "_pages/es_MX"
+      type: pages
+    values:
+      permalink: /es_MX/:basename:output_ext
+      lang: es_MX
   - scope:
       path: "_pages/en_US"
       type: pages
@@ -518,6 +524,11 @@ defaults:
       permalink: /el_GR/index:output_ext
   - scope:
       path: "_pages/en_PT/home.txt"
+      type: 
+    values:
+      permalink: /es_MX/index:output_ext
+  - scope:
+      path: "_pages/es_MX/home.txt"
       type: pages
     values:
       permalink: /en_PT/index:output_ext

_data/ui-text.yml

@@ -91,6 +91,8 @@ es: &DEFAULT_ES
   loading_label              :
 es-ES:
   <<: *DEFAULT_ES
+es-MX:
+  <<: *DEFAULT_ES
 es-CO:
   <<: *DEFAULT_ES