Unicode 15.0 (#478)

* fontspec-code-scripts.dtx: Typos

* Update script names to Unicode 15.0

This is based on tag names used in the alpha version of the OpenType
specification 1.9.1.

fontspec-code-scripts.dtx

@@ -37,7 +37,7 @@
 \newfontscript{CJK~Ideographic}{hani}
 \newfontscript{Coptic}{copt}
 \newfontscript{Cypriot~Syllabary}{cprt}
-\newfontscript{Cypro~Minoan}{cpmn}
+\newfontscript{Cypro-Minoan}{cpmn}
 \newfontscript{Cyrillic}{cyrl}
 \newfontscript{Default}{DFLT}
 \newfontscript{CustomDefault}{latn,DFLT}
@@ -71,6 +71,7 @@
 \newfontscript{Javanese}{java}
 \newfontscript{Kaithi}{kthi}
 \newfontscript{Kannada}{knd2,knda}
+\newfontscript{Kawi}{kawi}
 \newfontscript{Kayah~Li}{kali}
 \newfontscript{Kharosthi}{khar}
 \newfontscript{Khitan~Small~Script}{kits}
@@ -92,7 +93,7 @@
 \newfontscript{Mandaic}{mand}
 \newfontscript{Manichaean}{mani}
 \newfontscript{Marchen}{marc}
-\newfontscript{Masaram Gondi}{gonm}
+\newfontscript{Masaram~Gondi}{gonm}
 \newfontscript{Math}{math}
 \newfontscript{Medefaidrin}{medf}
 \newfontscript{Meitei~Mayek}{mtei}
@@ -108,6 +109,7 @@
 \newfontscript{Myanmar}{mym2,mymr}
 \newfontscript{N'Ko}{nko~}
 \newfontscript{Nabataean}{nbat}
+\newfontscript{Nag~Mundari}{nagm}
 \newfontscript{Nandinagari}{nand}
 \newfontscript{Newa}{newa}
 \newfontscript{Nushu}{nshu}