Add an index to the notes section

content/notes/ready/compiling.md

@@ -7,19 +7,18 @@ tags:
   - programming
 author: TrudeEH
 showToc: true
-weight: "31"
 ---
 
 
-Convert `C` code into machine code in 4 steps:
-1. **Preprocessing** (Convert all preprocessor instructions: `#…`)
-2. **Compiling** (Convert `C` code to machine code)
-3. **Assembling** (Compile the necessary libraries)
-4. **Linking** (Merge the compiled code with the compiled libraries)
+A compiler converts `C` code into machine code in 4 steps:
+1. **Preprocessing** (Convert all preprocessor instructions (`#…`) to C code.)
+2. **Compiling** (Convert `C` code to assembly.)
+3. **Assembling** (Compile the necessary libraries.)
+4. **Linking** (Merge the compiled code with the compiled libraries.)
 
 ## Libraries
 
-Libraries are pre-written collections of code that can be reused in other programs. On **UNIX* systems, they are usually located in the `/lib/` and `/usr/include` directories.
+Libraries are pre-written collections of code that can be reused in other programs. On *UNIX* systems, they are usually located in the `/lib/` and `/usr/include` directories.
 
 ### Math.h
 
@@ -47,7 +46,7 @@ To use a library, we first have to include it in the `C` code.
 #include <cs50.h> // cs50.h library will be included.
 ```
 
-Then, the library must be linked at compile time.
+Then, the library must be linked at compile time (unless it is part of the C standard).
 
 ```Shell
 gcc -o hello hello.c -lcs50
@@ -75,6 +74,6 @@ clean:
 ```
 
 ```Shell
-make #Compiles hello.c
-make clean #Removes the executable (hello) generated by the make command.
+make       # Compiles hello.c
+make clean # Removes the executable (hello) generated by the make command.
 ```