chore: add Python env with packages

Author: 403-html

.gitignore

@@ -1 +1,2 @@
-build
+build
+venv

CONTRIBUTION.md

@@ -21,9 +21,10 @@ This handbook is written in Markdown format. You can use any text editor to edit
 
 To set up the required environment and install the necessary packages, follow these steps:
 
-Change to the Python3 environment:
+Create Python virtual environment:
 
 ```bash
+python3 -m venv venv
 source venv/bin/activate
 ```
 

requirements.txt

@@ -0,0 +1,26 @@
+application_properties==0.8.2
+beautifulsoup4==4.12.3
+bracex==2.5
+certifi==2024.7.4
+charset-normalizer==3.3.2
+Columnar==1.4.1
+html5lib==1.1
+idna==3.8
+language_tool_python==2.8.1
+lxml==5.3.0
+Markdown==3.7
+pymarkdownlnt==0.9.22
+pyspelling==2.10
+PyYAML==6.0.2
+requests==2.32.3
+six==1.16.0
+soupsieve==2.6
+tomli==2.0.1
+toolz==0.12.1
+tqdm==4.66.5
+typing_extensions==4.12.2
+urllib3==2.2.2
+wcmatch==9.0
+wcwidth==0.2.13
+webencodings==0.5.1
+wheel==0.44.0