Update SP_224 documentation (Koenkk#2917)

* Update SP_224.md

Fix some typos/punctuation in SP_224 doc.

* fix change to be on source file, not (auto-generated) markdown

---------

Co-authored-by: Steve Muskiewicz <[email protected]>

Author: smuskiew

docgen/device_page_exposes.ts

@@ -58,8 +58,8 @@ function getExposeDocs(expose, definition) {
       lines.push(``);
       lines.push(`#### On with timed off`);
       lines.push(`When setting the state to ON, it might be possible to specify an automatic shutoff after a certain amount of time. To do this add an additional property \`on_time\` to the payload which is the time in seconds the state should remain on.`);
-      lines.push(`Additionnaly an \`off_wait_time\` property can be added to the payload to specify the cooldown time in seconds when the ${expose.type} will not answer to other on with timed off commands.`);
-      lines.push(`Support depend on the ${expose.type} firmware. Some devices might require both \`on_time\` and \`off_wait_time\` to work`);
+      lines.push(`Additionally an \`off_wait_time\` property can be added to the payload to specify the cooldown time in seconds when the ${expose.type} will not answer to other on with timed off commands.`);
+      lines.push(`Support depends on the ${expose.type} firmware. Some devices might require both \`on_time\` and \`off_wait_time\` to work`);
       lines.push(`Examples : \`{"state" : "ON", "on_time": 300}\`, \`{"state" : "ON", "on_time": 300, "off_wait_time": 120}\`.`);
     }