Issue #3016501 by govind.maloo, andrewmacpherson, markconroy: Writing style - Umami should be capitalised when it is used as a proper noun in English

(cherry picked from commit 4395557)

Author: alexpott

profiles/demo_umami/modules/demo_umami_content/default_content/articles.csv

@@ -1,7 +1,7 @@
 title,body,author,slug,image,alt,tags
 Give it a go and grow your own herbs,give-it-a-go-and-grow-your-own-herbs.html,Holly Foat,articles/give-it-a-go-and-grow-your-own-herbs,home-grown-herbs.jpg,"Fresh cut herbs including mint, parsley, thyme and dill","Grow your own,Seasonal,Herbs"
 The real deal for supermarket savvy shopping,the-real-deal-for-supermarket-savvy-shopping.html,Megan Collins Quinlan,articles/the-real-deal-for-supermarket-savvy-shopping,supermarket-savvy-umami.jpg,Products presented on supermarket shelving.,"Supermarkets,Shopping"
-The umami guide to our favorite mushrooms,the-umami-guide-to-our-favourite-mushrooms.html,Umami,articles/the-umami-guide-to-our-favourite-mushrooms,mushrooms-umami.jpg,A delightful selection of mushroom varieties laid out on a simple wooden plate.,"Mushrooms,Vegetarian"
+The Umami guide to our favorite mushrooms,the-umami-guide-to-our-favourite-mushrooms.html,Umami,articles/the-umami-guide-to-our-favourite-mushrooms,mushrooms-umami.jpg,A delightful selection of mushroom varieties laid out on a simple wooden plate.,"Mushrooms,Vegetarian"
 Let's hear it for carrots,lets-hear-it-for-carrots.html,Umami,articles/lets-hear-it-for-carrots,heritage-carrots.jpg,"Purple, orange, yellow and white heritage carrots.","Carrots,Vegetarian,Healthy"
 Baking mishaps - our troubleshooting tips,baking-mishaps-our-troubleshooting-tips.html,"Umami",articles/baking-mishaps-our-troubleshooting-tips,chocolate-brownie-umami.jpg,"A delicious chocolate brownie","Baking,Learn to cook"
 Skip the spirits with delicious mocktails,skip-the-spirits-with-delicious-mocktails.html,Megan Collins Quinlan,articles/skip-the-spirits-with-delicious-mocktails,mojito-mocktail.jpg,"Fresh mojito mocktail with garnish of mint leaves, ice, and sliced lime","Alcohol free,Drinks,Party,Cocktail party,Dinner party"