Update doc for 3.0

Once we have a definitive version of the Greeter:

**** ./doc/first_steps/shutdown.mdwn [#12361 (closed)]

**** ./doc/first_steps/startup_options.mdwn [#5680 (closed)]

**** ./doc/first_steps/startup_options/bridge_mode.inline.mdwn [#5680 (closed)]

**** ./doc/first_steps/startup_options/network_configuration.mdwn [#5680 (closed)]

**** ./doc/first_steps/startup_options/administration_password.mdwn [#5680 (closed)]

**** ./doc/first_steps/startup_options/offline_mode.mdwn [#5680 (closed)]

**** ./doc/first_steps/startup_options/bridge_mode.mdwn [#5680 (closed)]

**** ./doc/first_steps/startup_options/mac_spoofing.mdwn [#5680 (closed)]

**** ./doc/first_steps/persistence/use.mdwn [#12361 (closed)]
**** ./doc/first_steps/persistence/check_file_system.mdwn

**** ./doc/first_steps/persistence/configure.mdwn [#12361 (closed)]

**** ./doc/first_steps/persistence/copy.mdwn [#12381 (closed)]
**** ./doc/first_steps/persistence/change_passphrase.mdwn

Once we have a testing Debian Sid environment:

**** ./doc/advanced_topics/virtualization/boxes.mdwn [created #12378 (closed)]

**** ./doc/advanced_topics/virtualization/virt-manager.mdwn [created #12380 (closed)]

Once we got rid of TopIcons:

**** ./doc/encryption_and_privacy/gpgapplet.warning.mdwn

**** ./doc/encryption_and_privacy/gpgapplet.mdwn

---

./doc/encryption_and_privacy/gpgapplet/passphrase_encryption.mdwn

---

./doc/encryption_and_privacy/gpgapplet/public-key_cryptography.mdwn

**** ./doc/encryption_and_privacy/gpgapplet/decrypt_verify.mdwn

Once we have a testing OS X environment:

**** ./install/mac/clone.mdwn

**** ./install/mac/usb.mdwn

**** ./install/mac/dvd.mdwn

**** ./doc/first_steps/reset/mac.mdwn

Misc:

**** ./doc/advanced_topics/lan.mdwn (Places → Connect to Server… is wrong but I couldn’t test it better) [created #12376 (closed)]

**** ./doc/encryption_and_privacy/manage_passwords.mdwn [created #11917 (closed)]

Feature Branch: feature/11916-stretch-doc

Subtasks

• #11742 (closed)
• #11917 (closed)
• #11962 (closed)
• #12376 (closed)
• #12378 (closed)
• #12380 (closed)
• #12381 (closed)
• #12387 (closed)

Original created by @sajolida on 11916 (Redmine)