CLDR-15989 Add two more readme files to the cldr repo (#5011)

Author: btangmu

keyboards/README.md

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+# CLDR Keyboards
+
+For general information, see the main [README.md](../README.md).
+
+The `keyboards` folder contains data for CLDR Keyboards. References:
+
+- [LDML Part 7: Keyboards](https://www.unicode.org/reports/tr35/tr35-74/tr35-keyboards.html)
+- [Keyboard Work Group](https://sites.google.com/unicode.org/cldr/index/keyboard-workgroup)
+
+For copyright, terms of use, and further details, see the top [README](../README.md).

tools/scripts/README.md

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+# CLDR Scripts
+
+For general information, see the main [README.md](../../README.md).
+
+The `scripts` folder contains accessory scripts of various kinds, used for CLDR process and Survey Tool deployment. These include:
+
+- ansible: a folder containing Ansible scripts for configuring a remote server to run the Survey Tool, still in use as of 2025
+- cldr-svnprops-check.py: possibly obsolete, a Python script to check and fix svn property settings for CLDR source files
+- cldrres.mk: possibly obsolete, a Makefile to (re)generate ICU data out of CLDR
+- CLDRWrapper: possibly obsolete, a UNIX executable file, purpose undocumented
+- col2icu.py: possibly obsolete, a Python script to convert CLDR collation files from XML syntax to ICU syntax
+- fixSVNProps.sh: possibly obsolete, a shell script, using svn; purpose unknown
+- interimVettingTool.sh: possibly obsolete, a shell script; purpose unknown
+- jira-updater: a folder containing JavaScript and json code, still in use as of 2025
+- keyboard-abnf-tests: a folder containing JavaScript code, still in use as of 2025
+- llm: a folder containing an AI-powered classifier that flags entries deviating from expected patterns, still in use as of 2025
+- platformDiffTool.sh: possibly obsolete, a shell script to create an InterimVettingChart
+- sidewaysCharts.sh: a shell script to run GenerateSidewaysView (a Java class)
+- tr-archive: a folder containing JavaScript for a Unicode TR35 archiver; this is the critical production path for producing TR35
+- uca: a folder containing a shell script blankweights.sed to blank out non-zero weights
+- updateHash.sh: a shell script to calculate shasum of CLDR jar/zip files
+- web: a folder containing a variety of shell scripts, Python scripts, and Docker files, related to the site cldr.unicode.org
+
+For copyright, terms of use, and further details, see the top [README](../../README.md).

tools/scripts/llm/README.md

@@ -3,8 +3,8 @@
 - **GSoC Contributor:** [Preet Sojitra](https://github.com/preetsojitra2712)
 - **Mentors:** [Younies](https://github.com/younies), [Annemarie](https://github.com/aeapple)
 - **Tech Lead:** [Mark Davis](https://github.com/macchiati)
-- **Doc Status:** *Draft*
-- **Last Update:** June 11, 2023
+- **Doc Status:** _Draft_
+- **Last Update:** 2025-08-24
 - **Project Information:** [Leveraging LLMs to validate locale data](https://summerofcode.withgoogle.com/programs/2023/projects/lE93K0ho)
 
 ## Introduction