Use correct release tags. (#157)

Signed-off-by: Josh Matthews <[email protected]>

Author: jdm

.github/workflows/deploy.yml

@@ -28,12 +28,12 @@ jobs:
           echo "$(pwd)/opt/mdbook-mermaid" >> $GITHUB_PATH
       - name: Install latest mdbook
         run: |
-          tag=0.4.52
+          tag=v0.4.52
           url="https://github.com/rust-lang/mdbook/releases/download/$tag/mdbook-$tag-x86_64-unknown-linux-gnu.tar.gz"
           curl -sSL "$url" | tar -xz --directory=./opt/mdbook
       - name: Install latest mdbook-mermaid
         run: |
-          tag=0.16.2
+          tag=v0.16.2
           url="https://github.com/badboy/mdbook-mermaid/releases/download/$tag/mdbook-mermaid-$tag-x86_64-unknown-linux-gnu.tar.gz"
           curl -sSL "$url" | tar -xz --directory=./opt/mdbook-mermaid
       - name: Build book