docs: clean up coding guidelines subcommittee folder (Safety-Critical-Rust-Consortium#696)

Author: PLeVasseur

subcommittee/coding-guidelines/README.md

@@ -12,15 +12,11 @@ Coding guidelines were a well-requested topic, so we formed this subcommittee.
 
 ## Subcommittee Mission Statement
 
-A community-vetted coding guideline for Rust in safety-critical applications. A living document that is updated as features are added to Rust and we learn more by doing.
-
-Please see further details in our [mission statement](mission-statement.md).
+Please see further details in our mission statement on [arewesafetycriticalyet.org/coding_guidelines/mission](https://arewesafetycriticalyet.org/coding_guidelines/mission).
 
 ## Members and Membership
 
-Please find the list of members [here](members.md).
-
-The Safety-Critical Rust Consortium is still working through what this process is. Please check back soon.
+See section [Subcommittee Membership](https://github.com/Safety-Critical-Rust-Consortium/safety-critical-rust-consortium#subcommittee-membership) in the main README.md.
 
 ## Meetings
 
@@ -30,4 +26,3 @@ We are still sorting out meeting scheduling and frequency. Please check back soo
 
 * There is a `safety-critical-consortium` channel in the [Rust Zulip](https://rust-lang.zulipchat.com/) which contains a topic dedicated to [Coding Guidelines](https://rust-lang.zulipchat.com/#narrow/stream/445688-safety-critical-consortium/topic/Coding.20Guidelines).
 * Here! You're welcome to check out what's on offer and provide feedback and suggestions on how to improve.
-