Fix errors

– End short_description in punctuation
– Typo in key name

Author: shaedrich

topics/mean-stack/index.md

@@ -2,8 +2,8 @@
 aliases: mean
 topic: mean-stack
 display_name: MEAN
-short_description: MEAN is a source-available JavaScript solution stack that consists of MongoDB, Express.js, Angular.js/Angular, and Node.js
-releated: mern, mevn, meen, mongodb, expressjs, angularjs, angular, nodejs, javascript
+short_description: MEAN is a source-available JavaScript solution stack that consists of MongoDB, Express.js, Angular.js/Angular, and Node.js.
+related: mern, mevn, meen, mongodb, expressjs, angularjs, angular, nodejs, javascript
 wikipedia_url: https://en.wikipedia.org/wiki/MEAN_(solution_stack)
 created_by: Valeri Karpov
 released: 2013