pass argv back and forth to parse instead of making global

prevents messing up shell prompt after execution

README.md

@@ -1,6 +1,6 @@
 # stdouterr
 
-## combining stdout and stderr
+> combining stdout and stderr
 
 ### what is `stdouterr`?
 
@@ -14,7 +14,53 @@ have a readily available tool i can use 🤓✨
 
 ### how is `stdouerr`?
 
-🥚 initialised
+🐣 hatchling
+
+### how to use?
+
+not distributing compiled versions yet (it's not even released!)
+
+so you can (_cough_ have to) compile it yourself
+
+#### dependencies
+- `stdio.h`
+- `stdlib.h`
+
+both of which you most likely got when installing your compiler
+
+#### compilation
+```shell
+gcc -o stdouterr ./src/main.c
+```
+
+#### installation
+##### only for current user
+```shell
+cp ./stdouterr ~/.local/bin/
+# OR
+cp ./stdouterr ~/bin
+# OR to any other path in PATH
+```
+##### for all users on the system
+```
+# as root or using sudo
+cp ./stdouterr /usr/local/bin
+```
+
+#### troubleshooting
+<details>
+<summary>
+compilation failed because no such file `stdio.h` and/or `stdlib.h`
+</summary>
+
+##### Debian / Ubuntu / family
+install the package named `libc6-dev`
+##### RHEL / Fedora / CentOS family
+install the package named `glibc-devel`
+##### other
+sorry no idea. Google will be your friend tho
+
+</details>
 
 
 ### contributing

src/main.c

@@ -38,7 +38,7 @@ void print_usage(){
 }
 
 
-int parse(const int index){
+int parse(const int index, char **argv){
 
     int _return_value = 1;
     char* param = argv[index];
@@ -100,17 +100,11 @@ int parse(const int index){
     return _return_value;
 }
 
-int main(const int argc, char **_argv){
-
-    //TODO: alt method to make _argv globally accessible
-    argv = malloc( sizeof *argv * argc);
-    for(int i=0; i<argc; i++){
-	argv[i] = _argv[i];
-    }
+int main(const int argc, char **argv){
 
     if(argc > 1){
 	for(int counter = 1; counter < argc;){
-	    counter += parse(counter);
+	    counter += parse(counter, argv);
 	}
     }
 

src/tmp_help.h

@@ -19,5 +19,5 @@ void tmp_help(){
 	-t\n\
 	    Don\'t print output\n\
 	-r\n\
-	    Don\'t print error");
+	    Don\'t print error\n");
 }