Missing documentation since reST conversion

[szeder]

During the documentation format conversion from Markdown to reStructuredText in f578973d (moved reST into docs, fixed API table, 2022-02-08) a couple of documentation files (anticogging.md, interface-definition-file.md, mechanical-brakes.md and resources.md) were simply removed without a corresponding .rst being added. @nick-a-schneider

$ git ls-tree --name-only f578973d31b99a769f39640c033c196ba91e5330^:docs/ |sed -n -e 's/\.md$//p' >A
$ git ls-tree --name-only f578973d31b99a769f39640c033c196ba91e5330:docs/ |sed -n -e 's/\.rst$//p' >B
$ diff -u A B
--- A	2022-04-06 19:52:53.983378897 +0200
+++ B	2022-04-06 19:53:06.387739851 +0200
@@ -1,5 +1,4 @@
 analog-input
-anticogging
 ascii-protocol
 can-guide
 can-protocol
@@ -14,15 +13,13 @@
 getting-started
 ground-loops
 hoverboard
-interface-definition-file
-mechanical-brakes
+index
 migration
 native-protocol
 odrivetool
 pinout
 protocol
 rc-pwm
-resources
 specifications
 step-direction
 testing