adds branch naming section

basics.html

@@ -697,6 +697,26 @@
             - make changes in playground
           </section>
 
+          <section id="branch-names" data-markdown>
+            ## branch naming
+            ### conventions
+
+            - dashes in names
+            - slashes for categories
+
+            ```markdown
+            topic/ui/input-form
+            wip/test-different-fonts
+            hotfix/42
+            release/1.6.0
+            ```
+
+            notes:
+            - `git branch --list 'topic/*'`
+            - decide with your team
+            - write CONTRIBUTING.md
+          </section>
+
           <section id="merging" data-markdown>
             ## resolving branches