修正: コントリビュータガイドのpoetry依存・コード囲い

[tarepan]

内容

コントリビューターガイドの修正をおこなった。修正点は以下：

• poetry 前提 → pip 前提 (c.f. poetryとpipではどちらが開発に使われていますか？ #683)
• markdown コード囲い console → bash
• app/docビルド手順最新版へ

関連 Issue

part of #686

[github-actions]

Coverage Result

Resultを開く

Name	Stmts	Miss	Cover
run.py	513	272
voicevox_engine/init.py	1	0
voicevox_engine/cancellable_engine.py	94	72
voicevox_engine/core/init.py	0	0
voicevox_engine/core/core_adapter.py	81	12
voicevox_engine/core/core_initializer.py	59	30
voicevox_engine/core/core_wrapper.py	257	183
voicevox_engine/dev/init.py	0	0
voicevox_engine/dev/core/init.py	0	0
voicevox_engine/dev/core/mock.py	65	4
voicevox_engine/dev/tts_engine/init.py	0	0
voicevox_engine/dev/tts_engine/mock.py	28	0
voicevox_engine/engine_manifest/EngineManifest.py	36	0
voicevox_engine/engine_manifest/EngineManifestLoader.py	12	0
voicevox_engine/engine_manifest/init.py	0	0
voicevox_engine/library_manager.py	92	4
voicevox_engine/metas/Metas.py	36	0
voicevox_engine/metas/MetasStore.py	28	6
voicevox_engine/metas/init.py	0	0
voicevox_engine/model.py	180	9
voicevox_engine/morphing.py	71	46
voicevox_engine/preset/Preset.py	13	0
voicevox_engine/preset/PresetError.py	2	0
voicevox_engine/preset/PresetManager.py	80	2
voicevox_engine/preset/init.py	0	0
voicevox_engine/setting/Setting.py	11	0
voicevox_engine/setting/SettingLoader.py	17	0
voicevox_engine/setting/init.py	0	0
voicevox_engine/tts_pipeline/init.py	0	0
voicevox_engine/tts_pipeline/kana_converter.py	88	1
voicevox_engine/tts_pipeline/mora_mapping.py	7	0
voicevox_engine/tts_pipeline/phoneme.py	34	0
voicevox_engine/tts_pipeline/text_analyzer.py	146	6
voicevox_engine/tts_pipeline/tts_engine.py	267	9
voicevox_engine/user_dict/part_of_speech_data.py	5	0
voicevox_engine/user_dict/user_dict.py	146	12
voicevox_engine/utility/init.py	0	0
voicevox_engine/utility/connect_base64_waves.py	37	0
voicevox_engine/utility/core_version_utility.py	8	1
voicevox_engine/utility/mutex_utility.py	13	0
voicevox_engine/utility/path_utility.py	26	6
voicevox_engine/utility/run_utility.py	10	7
TOTAL	2463	682

[Hiroshiba]

LGTM！！