Update the publishing docs to refer to the v1.0.0 release (#380)

<!-- Provide a brief summary of your changes -->

## Motivation and Context
<!-- Why is this change needed? What problem does it solve? -->
The following PR updates the publishing docs to refer to the
mcp-publisher release assets from v1.0.0.

## How Has This Been Tested?
<!-- Have you tested this in a real application? Which scenarios were
tested? -->
Locally

## Breaking Changes
<!-- Will users need to update their code or configurations? -->
No

## Types of changes
<!-- What types of changes does your code introduce? Put an `x` in all
the boxes that apply: -->
- [ ] Bug fix (non-breaking change which fixes an issue)
- [ ] New feature (non-breaking change which adds functionality)
- [ ] Breaking change (fix or feature that would cause existing
functionality to change)
- [x] Documentation update

## Checklist
<!-- Go over all the following points, and put an `x` in all the boxes
that apply. -->
- [ ] I have read the [MCP
Documentation](https://modelcontextprotocol.io)
- [ ] My code follows the repository's style guidelines
- [ ] New and existing tests pass locally
- [ ] I have added appropriate error handling
- [ ] I have added or updated documentation as needed

## Additional context
<!-- Add any other context, implementation notes, or design decisions
-->

Signed-off-by: Radoslav Dimitrov <[email protected]>

Author: rdimitrov

docs/guides/publishing/publish-server.md

@@ -17,18 +17,51 @@ By the end of this tutorial, you'll have:
 
 ## Step 1: Install the Publisher CLI
 
-<!-- TODO: update once #358 solved -->
+You can either download a pre-built binary or build from source.
 
-Download and build the MCP publisher tool:
+### Option A: Download Pre-built Binary (Recommended)
+
+Download the latest release for your platform:
+
+```bash
+# macOS Apple Silicon (M1/M2/M3)
+curl -L https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_darwin_arm64.tar.gz | tar xz
+
+# macOS Intel
+curl -L https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_darwin_amd64.tar.gz | tar xz
+
+# Linux x86_64
+curl -L https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_linux_amd64.tar.gz | tar xz
+
+# Linux ARM64
+curl -L https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_linux_arm64.tar.gz | tar xz
+
+# Windows x86_64 (PowerShell)
+Invoke-WebRequest -Uri "https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_windows_amd64.tar.gz" -OutFile "mcp-publisher.tar.gz"
+tar xf mcp-publisher.tar.gz
+
+# Windows ARM64 (PowerShell)
+Invoke-WebRequest -Uri "https://github.com/modelcontextprotocol/registry/releases/download/v1.0.0/mcp-publisher_1.0.0_windows_arm64.tar.gz" -OutFile "mcp-publisher.tar.gz"
+tar xf mcp-publisher.tar.gz
+
+# Add to PATH (macOS/Linux)
+chmod +x mcp-publisher && sudo mv mcp-publisher /usr/local/bin/
+
+# Add to PATH (Windows): Move mcp-publisher.exe to a directory in your PATH
+```
+
+### Option B: Build from Source
+
+If you prefer to build from source (requires Go 1.24+):
 
 ```bash
-# Clone the registry repository (requires Go 1.24+)
+# Clone the registry repository
 git clone https://github.com/modelcontextprotocol/registry
 cd registry
 make publisher
 
-# The binary will be at cmd/publisher/bin/mcp-publisher
-export PATH=$PATH:$(pwd)/cmd/publisher/bin
+# The binary will be at bin/mcp-publisher
+export PATH=$PATH:$(pwd)/bin
 ```
 
 ## Step 2: Initialize Your server.json