Add first Age walkthrough

Getting-Started.md

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+# Getting Started
+
+This is the shortest route to a first random Age in Survival. Install the [required mods](Installation) before beginning.
+
+1. Craft an **Ink Vial** from two black dyes, a glass bottle, and a water bucket. Craft an **Ink Mixer**, **Writing Desk**, and **Book Binder**. The vanilla recipe book or optional JEI can show their recipes.
+2. Put paper and an Ink Vial in the Ink Mixer. Take its **Link Panel Page**. One Ink Vial is used per Link Panel. Optional basin ingredients can add link modifiers; you can leave the mixture plain for your first trip.
+3. Put leather or an empty Notebook and the Link Panel in the Book Binder. Give the Age a name and take the finished **Descriptive Book**. A Link-Panel-only book creates a seeded **random Age**; Symbol Pages let you choose its properties instead.
+4. Open the Descriptive Book. Once the Age is ready, click the destination preview to travel.
+
+**Bring a bound Linking Book for your return.** Automatic Return Links are disabled by default. Handheld travel drops the book you used at the departure point, so it does not travel with you. A book placed on a Book Stand or in a portal receptacle stays there.
+
+## What to do next
+
+- Find Symbol Pages in Age libraries, then store or arrange them in a Notebook.
+- Use paper and ink at the Writing Desk to copy Pages you already own.
+- Add Pages to a future book to control terrain, biomes, weather, celestials, structures, and other features. See [Writing Ages](Writing-Ages).
+- Place a Rivencraft book or Page on a vanilla Lectern to convert it to a Book Stand.
+
+If a book cannot be bound, read the Binder's Page warnings. Known out-of-order Pages may be repaired by the writing compiler and add instability; unsupported Pages or combinations can block binding. Operator-only detailed Binder status messages are disabled by default.