Improve Image build instructions

jasonwilliams14 · web-flow · commit dd2ababb310c · 2021-02-12T11:25:22.000-08:00
In section 3 of the building the image, bolded the NGINX version (FOSS and NGINX Plus) for visibility.
diff --git a/docs-web/installation/building-ingress-controller-image.md b/docs-web/installation/building-ingress-controller-image.md
@@ -25,15 +25,15 @@ We build the image using the make utility and the provided `Makefile`. Let’s c
     ```
 
 1. Build the image:
-    * For NGINX:
+    * For **NGINX**:
       ```
       $ make PREFIX=myregistry.example.com/nginx-ingress
       ```
       `myregistry.example.com/nginx-ingress` defines the repo in your private registry where the image will be pushed. Substitute that value with the repo in your private registry.
 
       As a result, the image **myregistry.example.com/nginx-ingress:edge** is built and pushed to the registry. Note that the tag `edge` comes from the `VERSION` variable, defined in the Makefile.
 
-    * For NGINX Plus, first, make sure that the certificate (`nginx-repo.crt`) and the key (`nginx-repo.key`) of your license are located in the root of the project:
+    * For **NGINX Plus**, first, make sure that the certificate (`nginx-repo.crt`) and the key (`nginx-repo.key`) of your license are located in the root of the project:
       ```
       $ ls nginx-repo.*
       nginx-repo.crt  nginx-repo.key
