Illustrate the guide with 21 screenshots, and sync content since the last pass
The guide had been text-only. It now carries screenshots of sign-in, the
hierarchy sidebar and its + menu, the dashboard, SNMP targets, the canvas, the
node context menu, the View menu, area clouds, node and link details, the LSDB
browser, the routing table, single points of failure, a computed path and its
hop table, simulation impact, the time-travel bar, alert rules, the SSH
terminal and system settings.
They live in this repo at images/ and are referenced relatively, the same path
the source guide uses, so the in-app guide and the repo render them from their
own copies without any per-target rewriting.
Also picked up from docs/userguide.md since the last sync: the GRE-vs-SNMP
comparison and why polled LSA header fields are deliberately omitted, the LSDB
browser being OSPF-only, IS-IS route labelling by level (I L2 across levels,
I IA for leaked prefixes), the RIB's Route column and per-hop proven/modelled
marks, the ECMP xN badge, the IGP Prefixes Area column and unique-prefix count,
and the "Add Routing Domain" menu label the screenshot showed was wrong.
Mention EIGRP in the top-level overview
The opening tagline and the hierarchy's Protocol Instance description
listed OSPFv2/OSPFv3/IS-IS (and, in the latter, omitted BGP too) even
though EIGRP and BGP are both fully supported protocol instance types
documented later in the same guide.
Add full Osprey user guide as wiki pages
Split docs/userguide.md's 14 chapters into individual wiki pages,
plus a Home landing page, persistent sidebar nav, and a shared footer.