Incorporate manual refinements to documentation and project files

- Additional improvements to IMPROVEMENTS_SUMMARY.md
- Further refinements to Calculator-App.md and Calculator-CLI.md
- Final quality adjustments for PR submission to original repository

IMPROVEMENTS_SUMMARY.md

@@ -3,17 +3,21 @@
 ## Issues Fixed
 
 ### 1. Critical Spelling Errors
+
 - **README.md**: Fixed "Reciepts" → "Receipts", "Scaner" → "Scanner", "extention" → "extension"
 - **Calculator-CLI.md**: Fixed "divison" → "division"
 
 ### 2. Tier Classification Inconsistency
+
 - **Calendar App**: Moved from `Projects/1-Beginner/` to `Projects/3-Advanced/` to match its tier designation
 - **README.md**: Updated Calendar app listing to reference correct path
 
 ### 3. File Organization
+
 - **Image-Scaner.md**: Renamed to `Image-Scanner.md` to fix spelling and updated README reference
 
 ### 4. Markdown Standards Compliance
+
 - **README.md**: Fixed list marker spacing (3 spaces → 1 space), removed trailing punctuation from headings
 - **Calculator-CLI.md**: Fixed trailing spaces and list marker consistency
 - **Multiple project files**: Fixed list marker spacing in sample files:
@@ -23,24 +27,28 @@
   - `Calculator-App.md`
 
 ### 5. Quality Improvements
+
 - **STYLE_GUIDE.md**: Created comprehensive style and quality guide for future contributions
 - **Markdown linting**: Addressed MD030, MD026, MD009, MD004, MD047 issues across multiple files
 
 ## Impact
 
 ### Repository Quality
+
 - Fixed **7+ spelling errors** across documentation
 - Resolved **1 major tier inconsistency** affecting project organization
 - Improved **markdown compliance** in 5+ files
 - Enhanced **overall professionalism** and consistency
 
 ### Developer Experience
+
 - Easier navigation with corrected file names and paths
 - Consistent formatting improves readability
 - Clear style guide helps future contributors
 - Professional appearance increases repository credibility
 
 ### Maintainability
+
 - Established quality standards for future contributions
 - Reduced confusion from inconsistent formatting
 - Created systematic approach to quality control