Update README.md

README.md

@@ -21,6 +21,20 @@ Complete documentation is in progress: http://cglm.readthedocs.io
 If you don't aware about original GLM library yet, you may also want to look at:
 https://github.com/g-truc/glm
 
+#### Note for new comers (Important):
+- `vec4` and `mat4` variables must be aligned. (There will be unaligned versions later)
+- **in** and **[in, out]** parameters must be initialized (please). But **[out]** parameters not, initializing out param is  also redundant
+- All functions are inline if you don't want to use pre-compiled versions with glmc_ prefix, you can ignore build process. Just incliude headers.
+- if your debugger takes you to cglm headers then make sure you are not trying to copy vec4 to vec3 or alig issues...
+- Welcome!
+
+#### Note for experienced developers:
+- Since I'm testing this library in my projects, sometimes bugs occurs; finding that bug[s] and making improvements would be more easy with multiple developer/contributor and their projects or knowledge. Consider to make some tests if you suspect something is wrong and any feedbacks, contributions and bug reports are always welcome. 
+
+#### Note for floating point errors:
+I realized that floating point errors may occur is some operaitons especially decomposing matrices. cglm will support double later but I will try yo fix these errors by learning floating points standarts in more details. Currently it is just in my TODOs. 
+
+<hr/>
 
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