stack-checker-docs: fix articles "a" -> "an"

diff --git a/basis/stack-checker/stack-checker-docs.factor b/basis/stack-checker/stack-checker-docs.factor
index 3f3c066a8595a724c10f526e488708cd9740c9a2..f43248e6872215ac858a480816e38bceacff940c 100644 (file)
--- a/basis/stack-checker/stack-checker-docs.factor
+++ b/basis/stack-checker/stack-checker-docs.factor
@@ -20,7 +20,7 @@ ARTICLE: "inference-combinators" "Combinator stack effects"
   { "The combinator must be called with a quotation that is either literal or built from literal quotations, " { $link curry } ", and " { $link compose } ". (Note that quotations that use " { $vocab-link "fry" } " or " { $vocab-link "locals" } " use " { $link curry } " and " { $link compose } " from the perspective of the stack checker.)" }
   { "If the word is declared " { $link POSTPONE: inline } ", the combinator may additionally be called on one of the word's input parameters or with quotations built from the word's input parameters, literal quotations, " { $link curry } ", and " { $link compose } ". When inline, a word is itself considered to be a combinator, and its callers must in turn satisfy these conditions." }
 }
-"If neither condition holds, the stack checker throws a " { $link unknown-macro-input } " or " { $link bad-macro-input } " error. To make the code compile, a runtime checking combinator such as " { $link POSTPONE: call( } " must be used instead. See " { $link "inference-escape" } " for details. An inline combinator can be called with an unknown quotation by " { $link curry } "ing the quotation onto a literal quotation that uses " { $link POSTPONE: call( } "."
+"If neither condition holds, the stack checker throws an " { $link unknown-macro-input } " or " { $link bad-macro-input } " error. To make the code compile, a runtime checking combinator such as " { $link POSTPONE: call( } " must be used instead. See " { $link "inference-escape" } " for details. An inline combinator can be called with an unknown quotation by " { $link curry } "ing the quotation onto a literal quotation that uses " { $link POSTPONE: call( } "."
 { $heading "Input stack effects" }
 "Inline combinators will verify the stack effect of their input quotations if they are declared in the combinator's stack effect. See " { $link "effects-variables" } " for details."
 { $heading "Examples" }
@@ -61,7 +61,7 @@ $nl
 } ;
 
 ARTICLE: "inference-branches" "Branch stack effects"
-"Conditionals such as " { $link if } " and combinators built on top have the same restrictions as " { $link POSTPONE: inline } " combinators (see " { $link "inference-combinators" } ") with the additional requirement that all branches leave the stack at the same height. If this is not the case, the stack checker throws a " { $link unbalanced-branches-error } "."
+"Conditionals such as " { $link if } " and combinators built on top have the same restrictions as " { $link POSTPONE: inline } " combinators (see " { $link "inference-combinators" } ") with the additional requirement that all branches leave the stack at the same height. If this is not the case, the stack checker throws an " { $link unbalanced-branches-error } "."
 $nl
 "If all branches leave the stack at the same height, then the stack effect of the conditional is just the maximum of the stack effect of each branch. For example,"
 { $example "[ [ + ] [ drop ] if ] infer." "( x x x -- x )" }