Move pages under tldr, lint run.sh, update docs

tldr/nvm.fish

@@ -0,0 +1,30 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# nvm
+
+> Install, uninstall, or switch between Node.js versions under the `fish` shell.
+> Supports version numbers like "12.8" or "v16.13.1", and labels like "stable", "system", etc.
+> More information: <https://github.com/jorgebucaran/nvm.fish>.
+
+- Install a specific version of Node.js:
+
+`nvm install {{node_version}}`
+
+- Use a specific version of Node.js in the current shell:
+
+`nvm use {{node_version}}`
+
+- Set the default Node.js version:
+
+`set nvm_default_version {{node_version}}`
+
+- List all available Node.js versions and highlight the default one:
+
+`nvm list`
+
+- Uninstall a given Node.js version:
+
+`nvm uninstall {{node_version}}`