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

tldr/msmtp

@@ -0,0 +1,22 @@
+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# msmtp
+
+> An SMTP client.
+> It reads text from `stdin` and sends it to an SMTP server.
+> More information: <https://marlam.de/msmtp>.
+
+- Send an email using the default account configured in `~/.msmtprc`:
+
+`echo "{{Hello world}}" | msmtp {{to@example.org}}`
+
+- Send an email using a specific account configured in `~/.msmtprc`:
+
+`echo "{{Hello world}}" | msmtp --account={{account_name}} {{to@example.org}}`
+
+- Send an email without a configured account. The password should be specified in the `~/.msmtprc` file:
+
+`echo "{{Hello world}}" | msmtp --host={{localhost}} --port={{999}} --from={{from@example.org}} {{to@example.org}}`