remove trailing whitespace from README.md

Author: Eli-Golin

README.md

@@ -187,36 +187,36 @@ ccc search --refresh database schema                 # update index first, then
 By default, `ccc search` scopes results to your current working directory (relative to the project root). Use `--path` to override.
 
 ## Docker
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 A Docker image is available for teams who want a reproducible, dependency-free
 setup — no Python, `uv`, or system dependencies required on the host.
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 ### Pull the image
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 ```bash
 docker pull ghcr.io/cocoindex-io/cocoindex-code:latest
 ```
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 ### Claude Code
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 ```bash
 claude mcp add cocoindex-code \
   -- docker run --rm --interactive \
     --volume "$(pwd):/workspace" \
     --volume cocoindex-model-cache:/root/.cache \
     ghcr.io/cocoindex-io/cocoindex-code:latest
 ```
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 ### Codex
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 ```bash
 codex mcp add cocoindex-code \
   -- docker run --rm --interactive \
     --volume "$(pwd):/workspace" \
     --volume cocoindex-model-cache:/root/.cache \
     ghcr.io/cocoindex-io/cocoindex-code:latest
 ```
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 > **Tip — pre-warm the index before first use:**
 > The MCP server indexes on demand, but for large codebases you can run the
 > indexer once in the foreground to watch progress and ensure everything is
@@ -229,26 +229,26 @@ codex mcp add cocoindex-code \
 >   --entrypoint cocoindex-code \
 >   ghcr.io/cocoindex-io/cocoindex-code:latest index
 > ```
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 ### Configuration via environment variables
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 All [configuration variables](#configuration) work identically in Docker — pass
 them with `--env` / `-e`:
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 ```bash
 # Extra extensions (e.g. Typesafe Config, SBT build files)
 -e COCOINDEX_CODE_EXTRA_EXTENSIONS="conf,sbt"
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 # Exclude build artefacts (Scala/SBT example)
 -e COCOINDEX_CODE_EXCLUDE_PATTERNS='["**/target/**","**/.bloop/**","**/.metals/**"]'
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 # Swap in a code-optimised embedding model
 -e COCOINDEX_CODE_EMBEDDING_MODEL=voyage/voyage-code-3
 -e VOYAGE_API_KEY=your-key
 ```
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 Full example with all options:
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 ```bash
 docker run --rm --interactive \
   --volume "$(pwd):/workspace" \
@@ -259,25 +259,25 @@ docker run --rm --interactive \
   -e VOYAGE_API_KEY=your-key \
   ghcr.io/cocoindex-io/cocoindex-code:latest
 ```
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 ### Named volume for the model cache
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 The default embedding model (~90 MB) is baked into the image. If you override
 `COCOINDEX_CODE_EMBEDDING_MODEL` with an external model, use a named volume so
 it is downloaded only once:
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 ```bash
 docker volume create cocoindex-model-cache
 ```
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 ### Build the image locally
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 ```bash
 docker build -t cocoindex-code:local -f docker/Dockerfile .
 ```
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 ### `.mcp.json` (Claude Code project config)
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 ```json
 {
   "mcpServers": {
@@ -294,7 +294,7 @@ docker build -t cocoindex-code:local -f docker/Dockerfile .
   }
 }
 ```
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 > **Note:** The index (`.cocoindex_code/`) is written inside `/workspace`, which
 > maps to your project root on the host. Incremental updates persist between
 > sessions. Add `.cocoindex_code/` to your `.gitignore`.