Docs refresh: README, in-app user guide, screenshots

- README: configuration table, every web module, corrected filter and live
  update wording, Data/ file list.
- Using USMT Dash article rewritten as a user guide: pages and addresses,
  tracking, device details, filtering, phones and tablets, tips.
- Screenshots retaken from the current build.

Documentation/Using USMT Dash.md

@@ -3,19 +3,20 @@
 
 # Using USMT Dash
 
-USMT Dash tracks a Windows device-refresh project: which old (**source**) device is being replaced by which new (**destination**) device, and how far each migration has got.
+USMT Dash tracks a Windows device-refresh project: which old (**source**) device is being replaced by which new (**destination**) device, and how far each migration has got. It updates by itself: while the worker is sweeping, new results appear every few seconds.
 
 ![How USMT Dash works](images/USMT%20Dash%20Architecture.png)
 
 ## The Pages
-| Page | What it's for |
-|---|---|
-| **Tracked Devices** | Register devices under a *tag* (your name, a date batch, a department...). The worker only watches tagged devices. |
-| **My Workbench** | Personal stacks: paste the devices on your cart and see just those. Saved in your browser. |
-| **USMT Status** | Every tracked migration, grouped by status, with ping, free space and USMT log lines. |
-| **All Devices** | Compares source and destination software and lists *specialty* apps missing from the new device. |
-| **Custom View** | Build your own table: add, remove, resize, drag and filter any column. |
-| **Documentation** | This knowledge base. Articles named after an app are linked from that app in the software view. |
+| Page | Address | What it's for |
+|---|---|---|
+| **Overview** | `/` | The home page (click the logo to get back here). Counters for everything that still needs attention, overall progress, where the work is by building and floor, and a calendar of deployment dates. Click any number to list the devices behind it. |
+| **Tracked Devices** | `/tracked` | Register devices under a *tag* (your name, a date batch, a department...). The worker only watches tagged devices. |
+| **My Workbench** | `/workbench` | Personal stacks: paste the devices on your cart and see just those. Saved in your browser. |
+| **USMT Status** | `/status` | Every tracked migration, grouped by status, with ping, free space and USMT log lines. |
+| **All Devices** | `/devices` | Compares source and destination software and lists the *specialty* apps missing from the new device. |
+| **Custom View** | `/custom` | Build your own table from any field: add, remove, resize, drag and filter columns. |
+| **Documentation** | `/docs` | This knowledge base. Every article has its own link, e.g. `/docs/Zoom`. |
 
 ## Migration Status
 ![Migration lifecycle](images/Migration%20Lifecycle.png)
@@ -30,8 +31,34 @@ USMT Dash tracks a Windows device-refresh project: which old (**source**) device
 | Not Associated | No computer association in ConfigMgr |
 | Skipped | The device's tag has **Skip USMT** ticked (inventory only) |
 
+## Tracking devices
+- One device per line. Partial names work in the Workbench, not here: use full names.
+- Pair devices manually with `SOURCE, DESTINATION` on one line when there's no ConfigMgr association. Changing the destination shows up straight away.
+- Tick **Skip USMT** on a tag for devices you only want inventory and online status for.
+- Newly added devices are swept first, so their data appears within a few seconds of the next cycle starting.
+
+## Device details
+Click any device to open its details. **Simple View** shows the migration; **Advanced View** adds both devices' inventory side by side.
+
+- **Presence**: whether the device is online now, when it was last online, and how long it has been offline.
+- **Found In**: whether AD, SCCM and DNS know the device. A blank field says why, for example *Not in SCCM* or *No DNS record*. *Waiting for worker...* means it hasn't been looked up yet.
+- **Monitors**: how many are attached and their models.
+- A small clock icon next to a value means it's a **snapshot**: the last reading taken while the device was reachable (hover for the time). Completed migrations and offline devices show these instead of blanks.
+
+## Filtering and sorting
+Every column header has a menu like Excel's: sort, search, and tick the values to show.
+
+- On list columns (tags, software) choose **Any ticked** (at least one), **Only ticked** (nothing else) or **Exactly ticked** (precisely those).
+- On software columns, **Documented** ticks every app that has an article. Add **Only ticked** to find the "easy" devices whose apps are all documented, or sort **Easiest first**.
+- On space columns, sort by disk size or free space, or filter to devices with more or less than a set amount free.
+- **Clear filters** in a table's header removes them all.
+
+## On a phone or tablet
+- Tables become cards. **Filter & sort** opens the same menus for any column.
+- The round **Jump** button finds a device by name and scrolls to its card (without hiding anything), or jumps to a section, the top, the middle or the bottom of the page.
+- In Custom View, **Card fields** picks what each card shows and in what order.
+
 ## Tips
-- Pair devices manually with `SOURCE, DESTINATION` on one line when there's no ConfigMgr association.
-- Click any device name for full details: location, users, hardware, AD groups.
 - **Copy Location Info** builds a ready-to-paste table for facilities or asset tickets.
-- In articles, `[[Copy:text]]` creates a click-to-copy link, and `[[Yellow:Label]]` adds a badge.
+- The **Data Updated** button shows the worker's progress, when the next cycle runs, and how long each kind of device took last time. **Force Update** starts a cycle now.
+- In articles, `[[Copy:text]]` creates a click-to-copy link, `[[Yellow:Label]]` adds a badge, and a quote starting with `[!NOTE]`, `[!TIP]` or `[!WARNING]` becomes a callout.