add eb tutorial

docs.it4i/software/eb.md

@@ -305,7 +305,7 @@ export PATH
 
 ## Build Software Using Your Own EasyConfig File
 
-For this example, we create an EasyConfig file to build Git 2.11.1 with *foss* toolchain. Open your favorite editor and create a file named git-2.11.1-foss-2017a.eb with the following content:
+For this example, we create an EasyConfig file to build Git 2.11.1 with *foss* toolchain. Open your favorite editor and create a file named *git-2.11.1-foss-2017a.eb* with the following content:
 
 ```console
 $ vim git-2.11.1-foss-2017a.eb