[scripts/release] Add explanations for each section of the release no…

…tes. (#4822)

The release engineer is expected to fill these sections in by gathering the information from the commits. If information is not available in a given commit, then the release engineer is expected to reach out to the commit author and ask them to provide the additional information (and encouraging them to do so in their commits in the future).

scripts/release

@@ -154,9 +154,13 @@ cut_release() {
     echo -e "\n## Component changes" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
     cat "$CHANGELOG_PATH" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
     echo -e "## API changes" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
+    echo -e "Replace this text with example code for each new feature." | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
     echo -e "## New features\n" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
+    echo -e "Replace this text with links to deprecation guides." | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
     echo -e "## New deprecations\n" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
+    echo -e "Replace this explanations for how to resolve the breaking changes." | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
     echo -e "## Breaking changes\n" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
+    echo -e "Replace this text with a summarized description of this release's contents." | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
     echo -e "# #develop#\n" | cat - "$rootdir/CHANGELOG.md" > /tmp/out && mv /tmp/out "$rootdir/CHANGELOG.md"
   fi
   git add "$rootdir/CHANGELOG.md"