update README

Author: DerThorsten

README.md

@@ -12,16 +12,21 @@ Here we assume a file `main.py` located at `~/foo/bar/main.py`.
 ```bash
 pyjs_code_runner run script \
     node \
-    --conda-env     ~/micromamba/envs/my_env         `# the emscripten-forge env` \
-                                                     `# in which to run the code` \
-    --mount         ~/foo/bar:/home/web_user/fubar   `# Mount path to virtual filesytem` \
+    --conda-env     ~/micromamba/envs/my_env         `# the emscripten-forge env`          \
+                                                     `# in which to run the code`          \
+                                                                                           \
+    --mount         ~/foo/bar:/home/web_user/fubar   `# Mount path to virtual filesytem`   \
                                                      `# <HOST_MACHINE_PATH>:<TARGET_PATH>` \
-    --script        main.py                          `# Path of the script to run` \
-                                                     `# (in virtual filesystem)` \
-    --work-dir      /home/web_user/fubar             `# Work directory ` \
-                                                     `#in the virtual fileystem`  \
-    --async-main                                     `# should a top-level async` \
-                                                     `# function named main be called` \
+                                                                                           \
+    --script        main.py                          `# Path of the script to run`         \
+                                                     `# (in virtual filesystem)`           \
+                                                                                           \
+    --work-dir      /home/web_user/fubar             `# Work directory `                   \
+                                                     `#in the virtual fileystem`           \
+                                                                                           \
+    --async-main                                     `# should a top-level async`          \
+                                                     `# function named main be called`     \
+
 ```