Add citations/footnotes using remark-gfm

.remarkrc.mjs

@@ -1,5 +1,6 @@
 import remarkFrontmatter from 'remark-frontmatter';
 import remarkMdx from 'remark-mdx';
+import remarkGfm from 'remark-gfm';
 import remarkPresetLintRecommended from 'remark-preset-lint-recommended';
 import remarkNoInlineCodeFences from './src/plugins/remark-no-inline-code-fences.mjs';
 import remarkNoHtmlLinks from './src/plugins/remark-no-html-links.mjs';
@@ -9,6 +10,7 @@ export default {
     plugins: [
         remarkFrontmatter,
         remarkMdx,
+        remarkGfm,
         remarkPresetLintRecommended,
         remarkNoInlineCodeFences,
         remarkNoHtmlLinks,

package.json

@@ -55,6 +55,7 @@
         "prettier-plugin-sentences-per-line": "^0.2.3",
         "remark-cli": "^12.0.1",
         "remark-frontmatter": "^5.0.0",
+        "remark-gfm": "^4.0.1",
         "remark-lint-no-dead-urls": "^2.0.1",
         "remark-mdx": "^3.1.1",
         "remark-preset-lint-recommended": "^7.0.1",

src/content/docs/learning-course/stage1/stage1b/commands-and-mechanisms.mdx

@@ -47,7 +47,7 @@ Notice that:
   when the command runs, like a method body.
 - This command will print "Full Speed Baby!" once before commanding
   the motor to spin at max speed.
-- The `named("Set to Full Throttle")` call is required to create a `Command`.
+- The `named("Set to Full Throttle")` call is required to create a `Command`.[^1]
   This allows coders to distinguish this command from others when debugging their code.
 
 To change the priority of the command, simply add a `withPriority(int)` call before
@@ -135,3 +135,5 @@ That means you can run multiple commands in sequence:
 ```java #commandSequence
 
 ```
+
+[^1]: [`NeedsNameBuilderStage.named()`](<https://github.wpilib.org/allwpilib/docs/2027/java/org/wpilib/command3/NeedsNameBuilderStage.html#named(java.lang.String)>)