Remove duplicate plain-text README and consolidate documentation

README.md

@@ -129,7 +129,7 @@ repository. Examples under [examples/](examples/) use synthetic data.
 - Exit `2`: an error or incomplete processing; inspect `SUMMARY.txt` and
   `details/summary.json`. If the scan failed before presentation, inspect
   `summary.json` at the result root instead.
-- Missing years/timezones are not guessed. See [README.txt](README.txt) for time configuration.
+- Missing years/timezones are not guessed. See time configuration below.
 - Binary appliance logs may need an external decoder. Decode failures can also come from ordinary text.
 - Damaged inputs and regex timeouts are reported. Archive path traversal, unsafe links and exhausted quotas stop preparation.
 - Processing uses one worker, incremental reads and disk-backed SQLite. There is no hard process-wide RAM/CPU quota or automatic resume.
@@ -138,6 +138,20 @@ repository. Examples under [examples/](examples/) use synthetic data.
 Tests were executed on macOS/ARM64. Windows and Linux instructions are provided,
 but those platforms have not yet been validated in the recorded test environment.
 
+## Time configuration
+
+Use known device settings when logs omit their year or timezone:
+
+```sh
+netscaler-triage scan --input ADC-A=./logs --year 2026 --timezone ADC-A=UTC
+```
+
+The appliance name, year and timezone above are examples. Explicit timestamps
+are retained; ambiguous daylight-saving times remain unresolved. Use
+`--time-config` for per-device settings and per-file year overrides; see
+[examples/time.json](examples/time.json). The effective assumptions are recorded
+in `details/configuration.json`.
+
 ## Help and development
 
 ```sh
@@ -154,7 +168,7 @@ uv run ruff format --check src tests typing_stubs
 uv build
 ```
 
-See [README.txt](README.txt) for the detailed plain-text manual and
+See [RULES.txt](RULES.txt) for rule-pack semantics and
 [VALIDATION.txt](VALIDATION.txt) for test scope and known coverage limits.
 
 ## License