updated readme

[noman404]

updated readme added inputs and outputs

Fixes #152
Fixes #141

[MaxGhenis]

please fix the spacing in the table as well (chatgpt can)

also note i edited the original comment to use the fixes keyword for both issues. this ensures clarity so we don't have to check the development sidebar

[MaxGhenis]

Child dependents or total dependents?

Suggested change

	| ageN | Nth dependent's age | Taxsim only allow upto 8 children dependent |
	| ageN | Nth dependent's age | Taxsim only allows up to 8 child dependents |

[MaxGhenis]

more from pr-improver.streamlit.app

Based on the provided diff and guidelines, here are 5 specific suggestions to improve the PR:

1. File: README.md, Line 59
   Change: "Incase of" to "In case of"
   Explanation: This corrects a spelling error, improving readability for all users, especially non-native English speakers.

2. File: README.md, Line 59-60
   Change: "Incase of any unexpected system error happens, you can uninstall the package and reinstall it again"
   to "If you encounter any unexpected system errors, you can uninstall the package and reinstall it:"
   Explanation: This rephrases the sentence to be more clear and concise, improving readability.

3. File: README.md, Line 79
   Change: Add a note about the output file format
   Add: "Note: The output is in a tab-separated text format, not CSV."
   Explanation: This clarifies the output format for users, preventing confusion about the file type.

4. File: README.md, Line 86
   Change: Add a brief explanation of the state code
   Add: "state | State code (FIPS) | Two-digit code, e.g., 06 for California"
   Explanation: This provides more context for the state code, helping users understand what value to input.

5. File: README.md, Line 117-119
   Change: Add brief descriptions for the output types
   Update to:

   | idtl | Description                                        |
   |------|----------------------------------------------------|
   | 0    | Standard output (basic tax calculation results)    |
   | 2    | Full output (detailed breakdown of calculations)   |
   | 5    | Full text output (human-readable explanations)     |
   

   Explanation: This provides more context for each output type, helping users choose the appropriate option for their needs.

These suggestions focus on improving clarity and providing more context for users, especially those who might not be familiar with the US tax system or TAXSIM conventions. They address spelling and grammar issues while also adding helpful explanations to make the documentation more user-friendly.