README: Added Prerequisites, more installation steps, updated

description, added Types, updated example

README.md

@@ -1,6 +1,6 @@
 # LibIMG
 
-_A "powerful" library that I have worked on allowing you to take a PPM image and apply filters and transformations and download the file. It also works for JPEG which you can also convert to PPM and vice versa_
+_A lightweight, fast, and minimal library designed to be powerful for my current capabilities. This is a hobby project to learn bit operations and expanded to a full processor between two types --- PPM and JPEG. It's powerful for what it is and it is weak for what it could be._
 
 > [Note]
 > All documentation is in the code and files itself. So to save myself time I would recommend going through the code itself.
@@ -8,9 +8,36 @@ _A "powerful" library that I have worked on allowing you to take a PPM image and
 > [Warning]
 > There are a lot of changes you can make to an image but this is not an extensive library to use mainstream. I would hope you understood that already. This Is for a self made project learning bitwise for c originally and now has become bigger and cooler than expected.
 
+## Prerequisites
+
+This library does require _```libturbojpeg```_ as manually writing the functions for JPEG would take a long time to figure out and I may come back to do later.
+
+## Types
+
+Available
+
+1. PPM (Originally just to learn with)
+2. JPEG (Added as having only PPM felt wrong)
+
+Planned
+
+3. PNG (Planned)
+4. SVG (We Shall See)
+
 ## Installation
 
-_You can pull libimg through FetchContent in your ```CMakeLists.txt```:_
+You can build manually or pull it into a project
+
+_To Build_:
+
+```bash
+git clone https://git.moomancer.xyz/DarthMooMancer/libimg.git
+cd libimg
+cmake -S . -B build && cmake --build build
+./build/libimg
+```
+
+_To pull, use FetchContent in your ```CMakeLists.txt```:_
 
 
 ```Make
@@ -33,6 +60,15 @@ _White it is not an extensive example, it shows many of the many logic of how to
  * Keep in mind any function that creates a new buffer and returns it can
  * overwrite the old one, however it is lost. SO create a new variable and free
  * the old one after use.
+ *
+ * Functions (Specifically filters) that return unsigned int (not pointers) need
+ * to be used as an input to the same point in a buffer.
+ *
+ * For example:
+ *
+ * buf[i] = u32_grayscale(buf[i]);
+ *
+ * The buf[i] is replaced by the output of grayscale at buf[i]
  */
 int
 main()