fix test typos ✅

Author: jaffrepaul

docs/contributing/pages/variables.mdx

@@ -4,7 +4,7 @@ noindex: true
 sidebar_order: 50
 ---
 
-A transformaton is exposd to both Markdown and MDX files which supports processing variables in a Django/Jekyll-style way.
+A transformation is exposed to both Markdown and MDX files which supports processing variables in a Django/Jekyll-style way.
 The variables available are globally scoped and configured within `remark-variables.js`.
 
 For example:

platform-includes/set-environment/elixir.mdx

@@ -3,7 +3,7 @@ config :sentry,
   environment_name: :prod
 ```
 
-Alterntively, you can use [`Config.config_env/0`](https://hexdocs.pm/elixir/Config.html#config_env/0) to set this value based on the current environment:
+Alternatively, you can use [`Config.config_env/0`](https://hexdocs.pm/elixir/Config.html#config_env/0) to set this value based on the current environment:
 
 ```elixir {filename:config/config.exs}
 config :sentry,