docs: document static file metadata

Author: Bor-Code

README.md

@@ -226,6 +226,16 @@ pe_analyzer.exe -dynamic C:\samples\example.exe -timeout 60 -out reports
 
 Static analysis creates both TXT and JSON reports.
 
+## Static File Metadata
+
+Static analysis reports include file metadata that helps identify the analyzed target and compare results across different analysis runs.
+
+TXT reports include:
+
+```text
+Target File Size: 360448 bytes
+SHA-256: ab15a95de88ab0624307ae0e28e333756a2a522f650...
+
 ### TXT Report
 
 The TXT report includes: