Fix screenshot references

docs/suppressions.md

@@ -1,8 +1,8 @@
 # Suppressions
 
 1. **Current call site**
-   ![](docs/supression_callsite.png)
+   ![](supression_callsite.png)
 2. **Project scope**
-   ![](docs/supression_project.png)
+   ![](supression_project.png)
 3. **Arbitrary scope**. Put the suppression from (2) in specific file and share
    between projects as needed.