Make Alias when installing a new version

Author: Dena Burd

nvm.sh

@@ -1802,6 +1802,10 @@ nvm_install_binary() {
     command mv "${TMPDIR}/"* "${VERSION_PATH}" && \
     command rm -rf "${TMPDIR}"
   ); then
+
+    if [ -n "${ALIAS}" ]; then
+      nvm alias "${ALIAS}" "${provided_version}"
+    fi
     return 0
   fi
 
@@ -2618,7 +2622,7 @@ nvm() {
             NVM_UPGRADE_NPM=1
             shift
           ;;
-           --default)
+          --default)
             if [ -n "${ALIAS-}" ]; then
               nvm_err '--default and --alias are mutually exclusive, and may not be provided more than once'
               return 6