[update] pipeline to not include demos in code coverage and fix wording in template.

Author: vmarcella

.github/ISSUE_TEMPLATE/bug.yml

@@ -43,7 +43,8 @@ body:
       description: Provide minimal steps to reproduce the issue.
       placeholder: |
         1. Clone repository
-        2. Run `cargo run --example <name>`
+        2. Run `cargo run -p lambda-demos-render --bin <name>` (or the relevant
+           `lambda-demos-*` crate)
         3. Observe error/unexpected behavior
     validations:
       required: true

.github/workflows/coverage.yml

@@ -67,13 +67,19 @@ jobs:
       - name: Generate full coverage JSON
         run: |
           cargo llvm-cov --workspace \
+            --exclude lambda-demos-audio \
+            --exclude lambda-demos-minimal \
+            --exclude lambda-demos-render \
             --features lambda-rs/with-vulkan,lambda-rs/audio-output-device \
             --json \
             --output-path coverage.json
 
       - name: Generate HTML coverage report
         run: |
           cargo llvm-cov --workspace \
+            --exclude lambda-demos-audio \
+            --exclude lambda-demos-minimal \
+            --exclude lambda-demos-render \
             --features lambda-rs/with-vulkan,lambda-rs/audio-output-device \
             --html \
             --output-dir coverage-html \
@@ -86,7 +92,10 @@ jobs:
           # Use GitHub's provided base/head SHAs for accurate diff
           base_sha="${{ github.event.pull_request.base.sha }}"
           head_sha="${{ github.event.pull_request.head.sha }}"
-          changed_files=$(git diff --name-only "$base_sha" "$head_sha" -- '*.rs' | tr '\n' ' ')
+          changed_files=$(git diff --name-only "$base_sha" "$head_sha" -- \
+            '*.rs' \
+            ':(exclude)demos/**' \
+            | tr '\n' ' ')
           echo "files=$changed_files" >> "$GITHUB_OUTPUT"
 
       - name: Generate coverage report data