Update cheatsheets

ohdear-cli

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# ohdear-cli
+
+> An unofficial Oh Dear CLI written with Laravel Zero.
+> More information: <https://github.com/nunomaduro/ohdear-cli>.
+
+- Display details about the currently authenticated user:
+
+`ohdear-cli me`
+
+- Add a new site to Oh Dear:
+
+`ohdear-cli sites:add {{url}}`
+
+- Display a list of sites and their current status:
+
+`ohdear-cli sites:list`
+
+- Display details about a specific site:
+
+`ohdear-cli sites:show {{site_id}}`