fix links

[StefanThoma]

Looks like the following links from some blogposts fail:

Errors in posts/2024-08-15_top_five_pharmaverse_packages/top-five-packages.md

• [404] https://cran.r-project.org/web/packages/rtables/vignettes/introduction.html | Failed: Network error: Not Found

-> Replace with either:
https://cran.r-project.org/web/packages/rtables/vignettes/rtables.html
or with
https://insightsengineering.github.io/rtables/latest-release/articles/rtables.html?q=introduction#introduction

Errors in posts/2024-07-24_working__groups_.../working__groups__updates.md

• [404] https://advance.phuse.global/pages/viewpage.action?pageId=327777 | Failed: Network error: Not Found

Errors in posts/2023-08-14_rhino_submission_2/rhino_submission_2.md

• [404] https://www.r-consortium.org/announcement/2023/10/05/shiny-app-successfully-reviewed-by-fda-cder-staff-pilot-2-announcement-2 | Failed: Network error: Not Found

I cannot access them either.
@bms63 do you know what's going on?

Originally posted by @StefanThoma in #236 (comment)

[StefanThoma]

for the r-consortium page we can replace with:
https://rconsortium.github.io/submissions-wg/pilot2.html

[StefanThoma]

And this would be for the working groups link:

https://advance.hub.phuse.global/wiki/spaces/WEL/pages/26804419/Data+Visualisation+Open+Source+Technology