update grammar

Author: ishtms

.gitignore

@@ -1 +1,3 @@
-.DS_Store
+.DS_Store
+test.md
+generate-index.js

chapters/ch01-what-is-a-web-server-anyway.md

@@ -1,4 +1,3 @@
-
 [![Read Prev](/assets/imgs/prev.png)](/Readme.md)
 
 # What the hell is a web server any way?

chapters/ch03-working-with-files.md

@@ -694,7 +694,7 @@ async function read_file() {
   try {
     const file_handle = await fs.open("./index.js");
     const stream = file_handle.readLines();
-    
+
     // we'll get to this syntax in a bit
     for await (const line of stream) {
       console.log("Reading line of length %d -> %s", line.length, line);
@@ -717,13 +717,14 @@ Reading line of length 12 -> read_file();
 
 Notice that we get rid of all those options since they are already set to default values for our convenience. Only specify them if you wish to choose values other than the defaults.
 
-## A small primer to `for..of` and `for await..of` in javascript
+## A small primer on `for..of` and `for await..of` in javascript
 
 ### `for..of`
 
 The **`for..of`** loop is a JavaScript feature that provides an easy and straightforward way to go through elements in an array, string, or other [iterable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols) objects. It makes it simpler to iterate through each item without the need to manage the loop's index or length manually.
 
 Let's look at the syntax:
+
 ```js
 for (const element of iterable) {
   // Code to be executed for each element

chapters/ch04.3-capturing-metadata.md

@@ -162,12 +162,12 @@ Let's add the following in our `#log` method of the `Logger` class:
 
 class Logger {
     ...
-    
+
     async #log(message, log_level) {
         if (log_level < this.#config.level || !this.#log.file_handle.fd) {
             return;
         }
-        
+
         /* New code inserted */
         let stack_trace;
         try {
@@ -177,7 +177,7 @@ class Logger {
         }
         console.log(stack_trace)
         /* New code ends */
-        
+
         await this.#log_file_handle.write(log_message);
     }
 
@@ -204,8 +204,6 @@ async function main() {
 }
 
 main()
-
-
 ```
 
 This outputs
@@ -395,8 +393,6 @@ function super_nested(logger) {
 }
 
 main()
-
-
 ```
 
 The log file shows the following -
@@ -405,8 +401,6 @@ The log file shows the following -
 [2023-08-19T19:11:51.888Z] [CRITICAL]: main (/Users/ihtmeet/Code/logtard/test.js:11:12) From the main() function
 [2023-08-19T19:11:51.888Z] [CRITICAL]: nested_func (/Users/ishtmeet/Code/logtard/test.js:16:12) From the nested_func() function
 [2023-08-19T19:11:51.888Z] [CRITICAL]: super_nested (/Users/ishtmeet/Code/logtard/test.js:21:12) From the super_nested() function
-
-
 ```
 
 This all seems to work pretty well. We now have helpful logs. However, before we start using this logging library in our personal projects, there are a lot of things that need to be taken care of. This includes logging crashes, handling SIGINT and SIGTERM signals, as well as properly utilizing the file_handle.
@@ -416,5 +410,3 @@ We'll take care of this in the next chapter.
 > The code for the entire chapter can be found [at the code/chapter_04.3 directory](/code/chapter_04.3/)
 
 ![](https://uddrapi.com/api/img?page=ch04.3)
-
-