Updated from "user-defined" to "User-defined".

Author: nbhoski

README.md

@@ -73,7 +73,7 @@ The Jenkins plugin for MATLAB can be used inside of "Multi-configuration" (matri
 
 ![image](https://user-images.githubusercontent.com/47204011/62603081-c2c8cc00-b912-11e9-83a4-c5462f58f607.png)
 
-3) Replace the user-defined axis variable in MATLAB root appropriately.
+3) Replace the User-defined axis variable in MATLAB root appropriately.
 
 ![image](https://user-images.githubusercontent.com/47204011/62459137-3c8a7980-b79c-11e9-9bee-305b4cabfd42.png)
 
@@ -89,22 +89,22 @@ The Jenkins plugin for MATLAB can be used inside of "Multi-configuration" (matri
 
 ![image](https://user-images.githubusercontent.com/47204011/62603081-c2c8cc00-b912-11e9-83a4-c5462f58f607.png)
 
-3) Add another user-defined axis for custom commands as shown below.
+3) Add another User-defined axis for custom commands as shown below.
 
 ![image](https://user-images.githubusercontent.com/47204011/62517774-b6c30880-b845-11e9-86a0-8344a281fb27.png)
 
-4) Replace the user-defined axis variable in MATLAB root appropriately.
+4) Replace the User-defined axis variable in MATLAB root appropriately.
 
 ![image](https://user-images.githubusercontent.com/47204011/62459137-3c8a7980-b79c-11e9-9bee-305b4cabfd42.png)
 
-5) Select "Custom" option from "Test mode" drop-down and replace user-defined axis variable for custom command appropriately.
+5) Select "Custom" option from "Test mode" drop-down and replace User-defined axis variable for custom command appropriately.
 
 ![image](https://user-images.githubusercontent.com/47204011/62518329-f3dbca80-b846-11e9-911f-82dfc3fcdd32.png)
 
 4) Save and run the build.
 
 
-Note: Axis variables can be replaced in either "$VAR" or "${VAR}" formats. Do not use complete MATLAB root path as axis values. Multi-configuration project creates separate workspace folder for each user-defined axis values with same name, and file separators in complete path will cause Jenkins build to fail as folder creation fails.
+Note: Axis variables can be replaced in either "$VAR" or "${VAR}" formats. Do not use complete MATLAB root path as axis values. Multi-configuration project creates separate workspace folder for each User-defined axis values with same name, and file separators in complete path will cause Jenkins build to fail as folder creation fails.
 
 ## Contact Us
 If you have any questions or suggestions, please feel free to contact MathWorks.