2026.01: Adds item for Intl Era/Month Code to Stage 3, including slides (#2018)

Author: ben-allen

2026/01.md

@@ -113,6 +113,7 @@ When applicable, use these emoji as a prefix to the agenda item topic.
     | stage | timebox | topic | presenter |
     |:-----:|:-------:|-------|-----------|
     | 3 | 10m | [Upsert](https://github.com/tc39/proposal-upsert) for Stage 4 ([Slides](https://docs.google.com/presentation/d/1PpQsFGM1V8miLf5Fp5AQO_VASP2WFlu2lM4CkKozrBo/)) ([PR#3740](https://github.com/tc39/ecma262/pull/3740)) | Daniel Minor |
+    | 2.7 | 45m | [Intl Era/Month Code](https://github.com/tc39/proposal-intl-era-monthcode) for Stage 3 ([slides](https://notes.igalia.com/p/era-monthcode-stage-3-111th-plenary#/) [PR #99](https://github.com/tc39/proposal-intl-era-monthcode/pull/99), [PR #101](https://github.com/tc39/proposal-intl-era-monthcode/pull/101), [PR #108](https://github.com/tc39/proposal-intl-era-monthcode/pull/108)) | Ben Allen |
     | 1 | 3m | Withdrawing [Intl.UnitFormat](https://github.com/tc39/proposal-intl-unit-format) | Chris de Almeida |
     | 0 | 30m | [Error option `limit`](https://github.com/BridgeAR/error-limit-option) for Stage 1 | Ruben Bridgewater |
     | 0 | 30m | [Error option `framesAbove`](https://github.com/BridgeAR/error-frames-above) for Stage 1 | Ruben Bridgewater |