fix: error for ASCII tables ("|foo bar|")

fix #36

Author: justinmk

corpus/taglink.txt

@@ -90,17 +90,16 @@ Note: ":autocmd" can...
   (block
     (line
       (word)
-      (taglink
-        (word)
-        (MISSING "|"))
+      (word)
+      (ERROR
+        (word))
       (word)
       (word))
     (line
-      (word
-        (MISSING "_word_common_token5")))
+      (word))
     (line
       (word)
-      (ERROR))
+      (word))
     (line
       (word)
       (word)

grammar.js

@@ -67,12 +67,9 @@ module.exports = grammar({
       seq("'", token.immediate(/[^'\n\t ]*[^'a-z\n\t ][^'\n\t ]*/), token.immediate("'")),
       // NOT optionlink: single char surrounded by "'".
       seq("'", token.immediate(/[^'\n\t ]/), token.immediate("'")),
-      // NOT taglink: single "|".
-      /\|[\t ]/,
-      // NOT taglink: "|foo".
-      seq('|', /[^|\n\t ]+/),
       // NOT taglink: "||".
       /\|\|*/,
+      '|',
       // NOT listitem: "-" or "•" followed by tab.
       /[-•]\t/,
       // NOT argument: