Fix URL typos

GitHub's generated anchors don't include punctuation.

Co-authored-by: jyn <github@jyn.dev>

Author: joshtriplett

text/3392-leadership-council.md

@@ -15,19 +15,19 @@ The Council is charged with the success of the Rust Project as a whole. The Coun
 
 - [Reference materials](#reference-materials)
 - [Motivation](#motivation)
-- [Duties, expectations, and constraints on the Council](#duties,-expectations,-and-constraints-on-the-council)
+- [Duties, expectations, and constraints on the Council](#duties-expectations-and-constraints-on-the-council)
 - [Structure of the Council](#structure-of-the-council)
   - [Top-level teams](#top-level-teams)
     - [Initial list of top-level teams](#initial-list-of-top-level-teams)
-    - [The "launching pad" top-level team](#the-"launching-pad"-top-level-team)
+    - [The "launching pad" top-level team](#the-launching-pad-top-level-team)
     - [Removing top-level teams](#removing-top-level-teams)
   - [Alternates and forgoing representation](#alternates-and-forgoing-representation)
   - [Term limits](#term-limits)
-  - [Limits on representatives from a single company/entity](#limits-on-representatives-from-a-single-company/entity)
+  - [Limits on representatives from a single company/entity](#limits-on-representatives-from-a-single-companyentity)
   - [Candidate criteria](#candidate-criteria)
   - [Relationship to the core team](#relationship-to-the-core-team)
   - [Relationship to the Rust Foundation](#relationship-to-the-rust-foundation)
-- [The Council's decision-making process](#the-council's-decision-making-process)
+- [The Council's decision-making process](#the-councils-decision-making-process)
   - [Operational vs policy decisions](#operational-vs-policy-decisions)
   - [Repetition and exceptions](#repetition-and-exceptions)
   - [The consent decision-making process](#the-consent-decision-making-process)
@@ -46,7 +46,7 @@ The Council is charged with the success of the Rust Project as a whole. The Coun
   - [Ensuring the Council is accountable](#ensuring-the-council-is-accountable)
   - [Ensuring Council representatives are accountable](#ensuring-council-representatives-are-accountable)
   - [Ensuring teams are accountable](#ensuring-teams-are-accountable)
-- [Moderation, disagreements, and conflicts](#moderation,-disagreements,-and-conflicts)
+- [Moderation, disagreements, and conflicts](#moderation-disagreements-and-conflicts)
   - [Disagreements among teams](#disagreements-among-teams)
   - [Conflicts involving teams or Project members](#conflicts-involving-teams-or-project-members)
   - [Contingent moderators](#contingent-moderators)