Fix links to some headings with special chars (#3494)

A couple of links in tables of contents were broken.

These were links where the URL fragment in the target was
auto-generated. When that happens, most special characters are removed
from the heading.

When the links in the tables of contents were written, the ones I am
fixing replaced some of the special characters with `-`, instead of
stripping them.

Author: douglasnaphas

docs/faq/Performance.md

@@ -10,7 +10,7 @@ hide_title: true
 ## Table of Contents
 
 - [How well does Redux “scale” in terms of performance and architecture?](#how-well-does-redux-scale-in-terms-of-performance-and-architecture)
-- [Won't calling “all my reducers” for each action be slow?](#won-t-calling-all-my-reducers-for-each-action-be-slow)
+- [Won't calling “all my reducers” for each action be slow?](#wont-calling-all-my-reducers-for-each-action-be-slow)
 - [Do I have to deep-clone my state in a reducer? Isn't copying my state going to be slow?](#do-i-have-to-deep-clone-my-state-in-a-reducer-isnt-copying-my-state-going-to-be-slow)
 - [How can I reduce the number of store update events?](#how-can-i-reduce-the-number-of-store-update-events)
 - [Will having “one state tree” cause memory problems? Will dispatching many actions take up memory?](#will-having-one-state-tree-cause-memory-problems-will-dispatching-many-actions-take-up-memory)

docs/faq/ReactRedux.md

@@ -13,7 +13,7 @@ hide_title: true
 - [Why isn't my component re-rendering, or my mapStateToProps running?](#why-isnt-my-component-re-rendering-or-my-mapstatetoprops-running)
 - [Why is my component re-rendering too often?](#why-is-my-component-re-rendering-too-often)
 - [How can I speed up my mapStateToProps?](#how-can-i-speed-up-my-mapstatetoprops)
-- [Why don't I have this.props.dispatch available in my connected component?](#why-dont-i-have-this-props-dispatch-available-in-my-connected-component)
+- [Why don't I have this.props.dispatch available in my connected component?](#why-dont-i-have-thispropsdispatch-available-in-my-connected-component)
 - [Should I only connect my top component, or can I connect multiple components in my tree?](#should-i-only-connect-my-top-component-or-can-i-connect-multiple-components-in-my-tree)
 - [How does Redux compare to the React Context API?](#how-does-redux-compare-to-the-react-context-api)