Typo fix on memory model Learning Path

Author: jasonrandrews

content/learning-paths/servers-and-cloud-computing/memory_consistency/arm_mem_model.md

@@ -81,7 +81,7 @@ litmus7 --help
 
 The input to both `herd7` and `litmus7` tools are snippets of assembly code, called litmus tests.
 
-Shown below are some example of running the tools with a litmus test. 
+Shown below are some examples of running the tools with a litmus test. 
 
 Run herd7 with a litmus test:
 ```
@@ -108,4 +108,4 @@ Run litmus7 with GCC emitting atomic instructions as required by the litmus test
 litmus7 ./test.litmus -ccopts="-mcpu=native"
 ```
 
-Continue to the next section to learn about a litmus test example. 
+Continue to the next section to learn about a litmus test example.