Minor modifications

picture and typos.

Author: yanncaniouoracle

cloud-infrastructure/ai-infra-gpu/ai-infrastructure/opm-flow-gpu/README.md

@@ -4,7 +4,7 @@
 
 The [Open Porous Media (OPM)](https://opm-project.org/) initiative is an innovative open source project for modeling and simulating porous media processes.
 
-    ![OPM Flow official illustration](/assets/images/OPM-Flow.png)
+![OPM Flow official illustration](/assets/images/OPM-Flow.png)
 
 OPM Flow is a fully-implicit, black-oil simulator capable of running industry-standard simulation models. The simulator is implemented using automatic differentiation to enable rapid development of new fluid models.