index: link first contribution page

Makefile

@@ -10,6 +10,8 @@ production: clean all production-test
 ## https://github.com/bitcoinops/bitcoinops.github.io/pull/494#discussion_r546376335
 export GIT_PAGER='_contrib/kill0'
 JEKYLL_FLAGS = --future --drafts --unpublished --incremental
+## Needed for github actions to work properly
+SHELL=/bin/bash
 
 clean:
 	bundle exec jekyll clean
@@ -61,5 +63,5 @@ pdf:
 	mv onboarding-to-bitcoin-core.pdf bin/
 
 epub:
-	asciidoctor -b epub3 -r asciidoctor-epub3 -r asciidoctor-diagram -o index.epub index_epub.adoc
+	bundle exec asciidoctor -b epub3 -r asciidoctor-epub3 -r asciidoctor-diagram -o index.epub index_epub.adoc
 	mv index.epub bin/onboarding-to-bitcoin-core.epub

entries/first-contribution.md

@@ -35,7 +35,7 @@ to Bitcoin Core but don't know what to work on or how to get started.
   - If you're trying to find a particular file, learn about Bitcoin
     Core's [architecture](/architecture.html).
 
-  - If you encounter confusing code, esearch the [history of that
+  - If you encounter confusing code, research the [history of that
     particular code](/past-changes.html).
 
 - To contribute a change:

index.html

@@ -44,6 +44,11 @@
     review and <a href="404">learn as you go</a>.</p>
   </div>
 
+  <div class="dah_card">
+    <p><b>Make a contribution</b></p>
+    <p>Get started making your <a href="/entries/first-contribution.html">first contribution</a>.</p>
+  </div>
+
   <div class="dah_card">
     <p><b>Squash a bug</b></p>
     <p>The minimal information you need to <a href="/entries/bugs.html">fix a problem</a>.</p>