[Doc] Add new contributors and relative scripts. (#5070)

### What this PR does / why we need it?
[Doc] Add new contributors and relative scripts.
Usage of scripts:
- `export GITHUB_TOKEN=<your github token>`
- `bash tools/collect_user_first_contribution.sh
vllm-project/vllm-ascend <base_sha> <head_sha>` and save the result to
one temporary file such as `contributors.txt`
- `python tools/format_contributors.py contributors.txt --start <start
index now>`
- Use the output to update the `contributors.md`


- vLLM version: v0.12.0
- vLLM main:
ad32e3e19c

---------

Signed-off-by: menogrey <1299267905@qq.com>

tools/collect_user_first_contribution.sh

@@ -0,0 +1,83 @@
+#!/bin/bash
+
+#
+# Copyright (c) 2025 Huawei Technologies Co., Ltd. All Rights Reserved.
+# Copyright 2023 The vLLM team.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# This file is a part of the vllm-ascend project.
+# Adapted from https://github.com/vllm-project/vllm/tree/main/tools
+#
+
+set -euo pipefail
+
+function usage() {
+  echo "This script collects the first contributions of new users in a given GitHub repository."
+  echo "Please set the environment variable GITHUB_TOKEN with repo read permission."
+  echo "Refer to https://docs.github.com/en/rest/authentication/authenticating-to-the-rest-api?apiVersion=2022-11-28"
+  echo ""
+  echo "Usage: $0 owner/repo base_sha head_sha"
+  echo "Example: $0 myorg/myrepo abcdef1 ghijk23"
+}
+
+if [ "$#" -ne 3 ]; then
+  usage
+  exit 1
+fi
+
+REPO="$1"    # Example: myorg/myrepo
+BASE="$2"    # older commit (exclusive)
+HEAD="$3"    # newer commit (inclusive)
+GITHUB_TOKEN="${GITHUB_TOKEN:-}"
+
+if [ -z "$GITHUB_TOKEN" ]; then
+  echo "Please set the environment variable GITHUB_TOKEN with repo read permission."
+  echo "Refer to https://docs.github.com/en/rest/authentication/authenticating-to-the-rest-api?apiVersion=2022-11-28"
+  exit 1
+fi
+
+# All commits in the time order, format: sha|email|name|date
+ALLCOMMITS=$(mktemp)
+git log --pretty=format:'%H|%aE|%aN|%cI' --reverse --all > "$ALLCOMMITS"
+
+# Get the first commit in this repo for each author email
+FIRST_BY_EMAIL=$(mktemp)
+awk -F'|' '!seen[$2]++ {print $2 "|" $1 "|" $4 "|" $3}' "$ALLCOMMITS" > "$FIRST_BY_EMAIL"
+# format: email|first_sha|date|name
+
+# Get the commit sha list in the range (base..head)
+RANGE_SHAS=$(mktemp)
+git rev-list "${BASE}..${HEAD}" > "$RANGE_SHAS"
+
+echo "New user's first commit in ${REPO} (${BASE}..${HEAD})"
+echo
+
+# Get each email's first commit, if the first commit sha is in the range, query GitHub mapping and output
+while IFS='|' read -r email sha date name; do
+  if grep -Fxq "$sha" "$RANGE_SHAS"; then
+    # Using GitHub API to check commit's author.login (if exists)
+    api_url="https://api.github.com/repos/${REPO}/commits/${sha}"
+    resp=$(curl -s -H "Authorization: token ${GITHUB_TOKEN}" -H "Accept: application/vnd.github.v3+json" "$api_url")
+    login=$(echo "$resp" | jq -r '.author.login // empty')
+    # fallback to name and email if login not found
+    if [ -n "$login" ]; then
+      user_display="@${login}"
+    else
+      user_display="$(echo "$name" | sed 's/^[[:space:]]*//;s/[[:space:]]*$//') <${email}>"
+    fi
+    echo "- ${user_display} — \`${sha}\` — ${date}"
+  fi
+done < "$FIRST_BY_EMAIL"
+
+# cleanup
+rm -f "$ALLCOMMITS" "$FIRST_BY_EMAIL" "$RANGE_SHAS"