i18n-en.yaml in metanorma-itu-2.2.5

- old
+ new

@@ -6,9 +6,10 @@
 normref: References
 symbolsabbrev: Abbreviations and acronyms
 abbrev: Abbreviations and acronyms
 symbols: Abbreviations and acronyms
 conventions: Conventions
+abstract: Summary
 elsewhere_terms: >-
   This Recommendation uses the following terms defined elsewhere:
 here_terms: >-
   This Recommendation defines the following terms:
 norm_annex: (This annex forms an integral part of this %.)