add spellcheck

.spelling

@@ -0,0 +1,37 @@
+# markdown-spellcheck spelling configuration file
+# Format - lines begining # are comments
+# global dictionary is at the start, file overrides afterwards
+# one word per line, to define a file override use ' - filename'
+# where filename is relative to this configuration file
+howtos
+gitlab
+Gitlab.com
+Gitlab
+gitlab.rb
+[[_TOC_]]
+Hetzner
+backup_information.yml
+artifacts
+lfs
+NPM
+markdownlint
+mdl
+Gemfiles
+Kubernetes
+PuppetDB
+PostgreSQL
+MySQL
+Nagios
+Elasticstack
+Apache
+URL
+SSH
+repo
+IAM
+keycloak
+Nevergreen
+Springboot
+microservices
+backend
+playstore
+ToCs