The ansi target, txt table styles, kdesc reference from ref/, typeface and table-width fixes (from dev fcec5e2e77ac)

Since the previous release: Machine::read_string() (the fs::path/std::string
overload pair split); kdesc -c and -u rendered from the ref/ reflection
klammerset; a fit column's tex width measured in TeX over every entry;
@typeface resolving to the family its css declares (a store directory name
now works in html) and hieroglyphs in @unicode_examples set in their
typeface; the ansi target -- plain text with the type styles a terminal can
show, identical to txt once the escape sequences are stripped -- with the
txt @table carrying :header_style, :style and :hline; @block anchoring,
@table spacing and the Image_quality state variable; and the rewritten
doc/klammertext_for_llm.md.

ref/ref.k

@@ -7,10 +7,26 @@
   :requires sks
 @@@
 
-@@diacritics_examples.k : Show the diacritics codes and their result in the text @@
+@@diacritics_examples.k :
+  Show the diacritics codes and their result in the text @@
 
-@@diacritics_examples.* ::  @eval :cpp *KLAMMERTEXT_HOME*/ref/reflect diacritics_examples @ @@
+@@diacritics_examples.* ::
+  @eval :cpp *KLAMMERTEXT_HOME*/ref/reflect diacritics_examples @ @@
 
-@@extended_latin_examples.k : Show the codes and the resulting extended Latin characters @@
+@@extended_latin_examples.k :
+  Show the codes and the resulting extended Latin characters @@
 
-@@extended_latin_examples.* :: @eval :cpp *KLAMMERTEXT_HOME*/ref/reflect extended_latin_examples @ @@
+@@extended_latin_examples.* ::
+  @eval :cpp *KLAMMERTEXT_HOME*/ref/reflect extended_latin_examples @ @@
+
+@@pinyin_examples.k :
+  Show the four tone markings for Mandarin @@
+
+@@pinyin_examples.* ::
+  @eval :cpp *KLAMMERTEXT_HOME*/ref/reflect pinyin_examples @ @@
+
+@@unicode_examples.k :
+  Show examples of Unicode characters @@
+
+@@unicode_examples.* ::
+  @eval :cpp *KLAMMERTEXT_HOME*/ref/reflect unicode_examples @ @@