new: [install.sh] WSL2 installation support

Signed-off-by: Valentin Lab <valentin.lab@kalysto.org>

src/install.sh

@@ -153,8 +153,8 @@ get_os() {
         Linux*)
             if [[ "$(< /proc/version)" =~ ^.*@(Microsoft|WSL).*$ ]]; then
                 e wsl
-            # elif [[ "$(< /proc/version)" == *@(microsoft|WSL)* ]]; then
-            #     e wsl2
+            elif [[ "$(< /proc/version)" =~ ^.*-microsoft-*$ ]]; then
+                e wsl2
             else
                 e linux
             fi
@@ -316,6 +316,11 @@ install.wsl() {
 }
 
 
+install.wsl2() {
+    install.linux
+}
+
+
 
 run() {
     OS="$(get_os)"