feat: update readme

.env.sample

@@ -1,13 +1,13 @@
 
-# Hub to download messages from
+# (optional) Default Hub to download messages from
 NEXT_PUBLIC_HUB_REST_URL="https://nemes.farcaster.xyz:2281"
 
-# Will only fetch a subset of messages if "development"
+# (optional) Will only fetch a subset of messages if "development"
 NEXT_PUBLIC_NODE_ENV="development"
 
 # WalletConnect project ID for connecting wallets (https://cloud.walletconnect.com)
 NEXT_PUBLIC_WALLETCONNECT_PROJECT_ID=
 
-# Developer FID and mnemonic for counter-signing new signer key requests
+# (optional) Developer FID and mnemonic for counter-signing new signer key requests
 FARCASTER_DEVELOPER_FID=
 FARCASTER_DEVELOPER_MNEMONIC=

README.md

@@ -1,36 +1,17 @@
-This is a [Next.js](https://nextjs.org/) project bootstrapped with [`create-next-app`](https://github.com/vercel/next.js/tree/canary/packages/create-next-app).
+# Farcaster Signer Tools
 
-## Getting Started
+This app helps you manage your Farcaster signers. Features include:
 
-First, run the development server:
+- View apps that have signers for your account
+- Backup messages for signers
+- Consolidate messages for signers for a single app
+- Delete signers
+- Create local signers to migrate to (stored in browser `localStorage`)
+- Migrate backup archives to a new local signer
 
-```bash
-npm run dev
-# or
-yarn dev
-# or
-pnpm dev
-# or
-bun dev
-```
+## Development
 
-Open [http://localhost:3000](http://localhost:3000) with your browser to see the result.
-
-You can start editing the page by modifying `app/page.tsx`. The page auto-updates as you edit the file.
-
-This project uses [`next/font`](https://nextjs.org/docs/basic-features/font-optimization) to automatically optimize and load Inter, a custom Google Font.
-
-## Learn More
-
-To learn more about Next.js, take a look at the following resources:
-
-- [Next.js Documentation](https://nextjs.org/docs) - learn about Next.js features and API.
-- [Learn Next.js](https://nextjs.org/learn) - an interactive Next.js tutorial.
-
-You can check out [the Next.js GitHub repository](https://github.com/vercel/next.js/) - your feedback and contributions are welcome!
-
-## Deploy on Vercel
-
-The easiest way to deploy your Next.js app is to use the [Vercel Platform](https://vercel.com/new?utm_medium=default-template&filter=next.js&utm_source=create-next-app&utm_campaign=create-next-app-readme) from the creators of Next.js.
-
-Check out our [Next.js deployment documentation](https://nextjs.org/docs/deployment) for more details.
+1. Clone the repo
+2. Copy the `.env.sample` file to `.env` and fill in the values
+3. Run `npm run dev`
+4. Open your browser to `http://localhost:3000`