feat(docs/meetup-2-guide): update room description

- Updated the address to be 东上院 instead of 东下院 according to arrangements
- Added room description link

Signed-off-by: Noa Virellia <noa@requiem.garden>

src/content/docs/en/meetup-2-guide.mdx

@@ -116,7 +116,7 @@ Public transport from Shanghai Songjiang Station to the venue is inconvenient, s
 
 ### Arriving at the Venue
 
-Venue: **East Lower Hall Teaching Building** (exact room TBA), located at southeast area of the campus, near South Gate 2 (currently closed). It is about 1200 m from Siyuan Gate and South Gate (both open), and about 1600 m from North Gate 1 and East Gate 3 (both open).
+Venue: **Dong Shangyuan Building（东上院） 101**, located at southeast area of the campus, near South Gate 2 (currently closed). It is about 1200 m from Siyuan Gate and South Gate (both open), and about 1600 m from North Gate 1 and East Gate 3 (both open).
 
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