docs: default extension in visual studio code

Signed-off-by: Vitaliy Gulyy <vgulyy@redhat.com>

Author: vitaliy-guliy

modules/administration-guide/pages/default-extensions-for-microsoft-visual-studio-code.adoc

@@ -84,7 +84,7 @@ events:
 
 * Include extension *.vsix* binaries to *che-code* image.
 +
-Having default extensions bundled in the editor image along with __DEFAULT_EXTENSIONS__ environment variable defined in a configmap, will allow you to use default extensions without the need to change the Devfile.
+Having default extensions bundled in the editor image along with __DEFAULT_EXTENSIONS__ environment variable defined in a config map, will allow you to use default extensions without the need to change the Devfile.
 +
 Following steps will help you to add the extensions you need to the editor image.
 +
@@ -114,7 +114,7 @@ $ docker build -t yourname/che-code:next .
 $ docker push yourname/che-code:next
 ----
 +
-4. Add new configmap, define __DEFAULT_EXTENSIONS__ environment variable, specify absolute paths to the extensions. 
+4. Add new config map, define __DEFAULT_EXTENSIONS__ environment variable, specify absolute paths to the extensions. 
 +
 [source,yaml]
 ----