Merge pull request #3135 from ehuss/rfc-links

Fix incorrect RFC links.

Author: m-ou-se

text/2797-project-ffi-unwind.md

@@ -1,7 +1,7 @@
 - Feature Name: `project-unwind-FFI`
 - Start Date: 2019-10-27
-- RFC PR: [rust-lang/rfcs#0000](https://github.com/rust-lang/rfcs/pull/0000)
-- Rust Issue: [rust-lang/rust#0000](https://github.com/rust-lang/rust/issues/0000)
+- RFC PR: [rust-lang/rfcs#2797](https://github.com/rust-lang/rfcs/pull/2797)
+- Rust Issue: N/A
 
 # Summary
 [summary]: #summary

text/2835-project-safe-transmute.md

@@ -1,6 +1,6 @@
 - Feature Name: `project-safe-transmute`
 - Start Date: 2019-12-06
-- RFC PR: [rust-lang/rfcs#0000](https://github.com/rust-lang/rfcs/pull/0000)
+- RFC PR: [rust-lang/rfcs#2835](https://github.com/rust-lang/rfcs/pull/2835)
 - Rust Issue: N/A
 
 # Summary

text/2841-export-executable-symbols.md

@@ -1,7 +1,7 @@
 - Feature Name: export-executable-symbols
 - Start Date: 2019-12-28
 - RFC PR: [rust-lang/rfcs#2841](https://github.com/rust-lang/rfcs/pull/2841)
-- Rust Issue: [rust-lang/rust#0000](https://github.com/rust-lang/rust/issues/0000)
+- Rust Issue: [rust-lang/rust#84161](https://github.com/rust-lang/rust/issues/84161)
 
 # Summary
 [summary]: #summary

text/3085-edition-2021.md

@@ -1,7 +1,7 @@
 - Feature Name: edition_2021
 - Start Date: 2021-02-19
-- RFC PR: [rust-lang/rfcs#0000](https://github.com/rust-lang/rfcs/pull/3085)
-- Rust Issue: [rust-lang/rust#0000](https://github.com/rust-lang/rust/issues/85811)
+- RFC PR: [rust-lang/rfcs#3085](https://github.com/rust-lang/rfcs/pull/3085)
+- Rust Issue: [rust-lang/rust#85811](https://github.com/rust-lang/rust/issues/85811)
 
 # Summary
 [summary]: #summary