updated synopsis with information on extra modules and gfdoc for internal abstract syntax

lib/src/abstract/Tense.gf

@@ -5,7 +5,7 @@
 -- forms of sentences. Together they give 4 x 2 x 2 = 16 sentence forms.
 
 -- These tenses are defined for all languages in the library. More tenses
--- can be defined in the language extensions, e.g. the "passé simple" of
+-- can be defined in the language extensions, e.g. the "passe simple" of
 -- Romance languages in [``ExtraRomance`` ../romance/ExtraRomance.gf].
 
 abstract Tense = Common ** {

lib/src/abstract/Verb.gf

@@ -2,6 +2,8 @@
 
 abstract Verb = Cat ** {
 
+  flags coding = utf8 ;
+
 --2 Complementization rules
 
 -- Verb phrases are constructed from verbs by providing their
@@ -41,8 +43,8 @@ abstract Verb = Cat ** {
 -- them. In many languages, the result is a participle that
 -- is used as complement to a copula ("is used"), but other
 -- auxiliary verbs are possible (Ger. "wird angewendet", It.
--- "viene usato"), as well as special verb forms (Fin. "käytetään",
--- Swe. "används").
+-- "viene usato"), as well as special verb forms (Fin. "käytetään",
+-- Swe. "används").
 --
 -- *Note*. the rule can be overgenerating, since the $V2$ need not
 -- take a direct object.