[GHA] Add label to PRs (openvinotoolkit#120)

Add llm_bench label to PRs changing files under llm_bench/ folder,
update .github/label_config.yml to add new adding label
rules/configurations

---------

Signed-off-by: Peter Chen <peter.chen@intel.com>

Author: peterchen-intel

.github/label_config.yml

@@ -0,0 +1,8 @@
+# https://github.com/actions/labeler
+
+# Add label to the PRs changing files under llm_bench/
+llm_bench:
+- changed-files:
+  - any-glob-to-any-file:
+    - 'llm_bench/**'
+    - '.github/workflows/llm_bench-python.yml'

.github/workflows/labeler.yml

@@ -0,0 +1,21 @@
+# https://github.com/actions/labeler
+name: label PRs
+
+on:
+  pull_request_target:
+    types: [opened]
+    paths:
+      - llm_bench/python/**
+      - .github/workflows/llm_bench-python.yml
+
+jobs:
+  labeler:
+    permissions:
+      contents: read
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/labeler@v5
+      with:
+        configuration-path: '.github/label_config.yml'

llm_bench/python/README.md

@@ -120,4 +120,4 @@ python ./benchmark.py -m models/llama-2-7b-chat/pytorch -d CPU --torch_compile_b
 ### 1. NOTE
 > If you encounter any errors, please check **[NOTES.md](./doc/NOTES.md)** which provides solutions to the known errors.
 ### 2. Image generation
-> If you need to set parameters for image generation, you need to prepare a prompt file, please check **[IMAGE_GEN.md](./doc/IMAGE_GEN.md)**
+> To configure more parameters for image generation models, reference to **[IMAGE_GEN.md](./doc/IMAGE_GEN.md)**