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

tldr/nginx

@@ -0,0 +1,29 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# nginx
+
+> Nginx web server.
+> More information: <https://nginx.org/en/>.
+
+- Start server with the default configuration file:
+
+`nginx`
+
+- Start server with a custom configuration file:
+
+`nginx -c {{configuration_file}}`
+
+- Start server with a prefix for all relative paths in the configuration file:
+
+`nginx -c {{configuration_file}} -p {{prefix/for/relative/paths}}`
+
+- Test the configuration without affecting the running server:
+
+`nginx -t`
+
+- Reload the configuration by sending a signal with no downtime:
+
+`nginx -s reload`