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create code fences with backticks ` or tildes ~
```
like so
``` -
add language identifier to highlight code
```python
def function(foo):
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``` - put returns between paragraphs
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sudo apt-get install systemdgotReading package lists... Done Building dependency tree Reading state information... Done systemd is already the newest version (237-3ubuntu10.41). systemd set to manually installed. 0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.systemd --versionsystemd 237+PAM +AUDIT +SELINUX +IMA +APPARMOR +SMACK +SYSVINIT +UTMP +LIBCRYPTSETUP +GCRYPT +GNUTLS +ACL +XZ +LZ4 +SECCOMP +BLKID +ELFUTILS +KMOD -IDN2 +IDN -PCRE2 default-hierarchy=hybrid