diff --git a/.github/workflows/e2e.yaml b/.github/workflows/e2e.yaml
index 3a3b5638..2b206aa0 100644
--- a/.github/workflows/e2e.yaml
+++ b/.github/workflows/e2e.yaml
@@ -4,6 +4,8 @@ on:
   pull_request:
     types: [opened, reopened]
   push:
+    paths-ignore:
+      - '*.md'
 
 jobs:
   e2e_tests:
diff --git a/documentation/contributing.md b/documentation/contributing.md
index a67d58d9..9cfbfe3e 100644
--- a/documentation/contributing.md
+++ b/documentation/contributing.md
@@ -13,4 +13,5 @@
 **Naming conventions**
 + Types, React-components: `PascalCase`
 + Field names that come directly from database columns or tables: `snake_case`
++ Environment variables: `SCREAMING_SNAKE_CASE`
 + Everything else - variables, functions etc: `camelCase`