More OpenSSL and documenation fun. No more words to say. (0.38.13)

docs/external/README.md

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+# External integrations (optional extensions)
+
+This section documents Fun’s optional, build‑time selectable extensions. Each page covers:
+- How to enable the extension via CMake option (FUN_WITH_*)
+- Build requirements and detection notes
+- Available opcodes and/or helper functions
+- Minimal usage examples and links to example scripts
+
+Extensions:
+
+- [cURL (libcurl)](./curl.md)
+- [INI (iniparser)](./ini.md)
+- [JSON (json-c)](./json.md)
+- [libxml2 (XML)](./xml2.md)
+- [SQLite](./sqlite.md)
+- [libSQL (SQLite-compatible)](./libsql.md)
+- [PCRE2 (Perl-compatible regex)](./pcre2.md)
+- [PC/SC (Smart cards)](./pcsc.md)
+- [Notcurses (TUI)](./notcurses.md)
+- [Tcl/Tk (GUI)](./tcltk.md)
+- [OpenSSL (MD5 helper)](./openssl.md)
+
+Notes:
+- These integrations are optional; the VM compiles without them.
+- When disabled, related builtins usually return empty strings/neutral values rather than fail hard, mirroring existing optionality patterns.