diff --git a/README.md b/README.md
index 9daff8f39bdb57109f9d970587f7384741df28ac..8fadf9d072262acfe8ef81b437d88fecb0d4575f 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,9 @@
 Libravatar-nginx
 ===
 
-Libravatar-nginx is a project that aims to provide an easy and static way to provide your avatars [following the libravatar](https://www.libravatar.org/) using not more than nginx. This provides a massively reduced attack surface and maxium performance since all images are pre-genrated and no further code has to run on the server-side.
+Libravatar-nginx is a project that aims to provide an easy and static way to provide your avatars [following the libravatar](https://www.libravatar.org/) using not more than nginx. This provides a massively reduced attack surface and maximum performance since all images are pre-generated and no further code has to run on the server-side.
 
-To achive this the image uses a shell script, imagemagick's `convert` command and an extended nginx config.
+To achieve this the image uses a shell script, imagemagick's `convert` command and an extended nginx config.
 
 Supported features:
 
@@ -73,6 +73,7 @@ The libravatar-nginx container image provides some config options for the avatar
 
 |Option       |Default|Description|
 |-------------|-------|-----------|
+|`DEBUG`      | unset | If set, the entrypoint script will run with `set -x`. |
 |`SCALE_START`| `10`  | Size of the minimal border length of an avatar. All avatars are square so the smallest avatar size available is `10x10` when using the default setting.|
 |`SCALE_STEP` | `2`   | Change in pixel for the generation of avatars. When using default values `10x10` would be the smallest available avatar followed by `12x12`, `14x14`, and so on.|
 |`SCALE_STOP` | `512` | Maximum avatar size. All sizes from `SCALE_START` to `SCALE_STOP` will be generated using the `SCALE_STEP` as counter. With defaults this means `10x10`, `12x12`, `14x14`, … until `512x512`.|