Disable textlint for figure src attribute (open-telemetry#3585)

Co-authored-by: Phillip Carter <[email protected]>

Author: svrnm

.textlintrc.yml

@@ -14,7 +14,11 @@ filters:
       # Hugo template syntax:
       - /{{.*?}}/
       - /{{%.*?%}}/
-      # Other
+      # Custom header anchors in markdown headings:
+      - /{#.*?}/
+      # src attribute in figure Hugo template:
+      - /src=".*?"/
+      # Other:
       - /<https?://.*?>/ # Raw URLs
 rules:
   terminology: