fix some comments

README.md

@@ -19,7 +19,7 @@ Developers: [Getting started](https://www.secondstate.io/articles/getting-starte
 
 [Function input and return values](nodejs/functions/README.md)
 
-[Passing and return values of arbitary types from Node.js to Rust](nodejs/json_io/README.md)
+[Passing and return values of arbitrary types from Node.js to Rust](nodejs/json_io/README.md)
 
 [Calling Node.js functions from Rust](nodejs/nodejs_example/README.md)
 

faas/mtcnn/README.md

@@ -81,7 +81,7 @@ Temporarily downgrade npm
 
 The following installation will require that npm is downgraded to `6.14.9`. There is [an npm cli issue](https://github.com/npm/cli/issues/1865) which prevents us from using the latest npm for this particular build from source task.
 
-Because of the complexity of dependency management, please install aptitude because it provides a way to automatically resolve depencency conflicts.
+Because of the complexity of dependency management, please install aptitude because it provides a way to automatically resolve dependency conflicts.
 
 ```bash
 sudo apt install aptitude

faas/poster/README.md

@@ -70,4 +70,4 @@ Run the following commland to see the tested result.
 cargo run
 ```
 
-If everything goes well, follow the aboving instrcutions to publish your web application.
+If everything goes well, follow the aboving instructions to publish your web application.

faas/search-bytes/src/lib.rs

@@ -11,8 +11,8 @@ pub fn search_bytes(haystack: &[u8], needle: &[u8]) -> String {
 #[wasm_bindgen]
 pub fn search_bytes_single_input(byte_array: &[u8]) -> String {
 	// Parse the byte array to fetch the first 10 bytes as a literal number and remove the leading zero
-	// The cost of having 10 bytes to store the size (and the leading zero to ensure that one byte never exceeds 255) is negligable
-	// when compared with the dissadvantage of only being able to store up to 255 bytes per byte array and/or having to manage multidimensional arrays etc.
+	// The cost of having 10 bytes to store the size (and the leading zero to ensure that one byte never exceeds 255) is negligible
+	// when compared with the disadvantage of only being able to store up to 255 bytes per byte array and/or having to manage multidimensional arrays etc.
     let mut number_of_bytes_str = "".to_string();
     for i in 0..10 {
         number_of_bytes_str.push_str(&byte_array[i].to_string());