contributing: update to reference single line braces

Signed-off-by: Maryam Tahhan <[email protected]>

CONTRIBUTING.md

@@ -7,7 +7,14 @@ This document outlines how to contribute code to the CNDP project.
 The CNDP code can be cloned from the repository on GitHub:
 
 ``` bash
-git clone https://github.com/CloudNativeDataPlane/cndp.git
+$ git clone https://github.com/CloudNativeDataPlane/cndp.git
+Cloning into 'cndp'...
+remote: Enumerating objects: 4541, done.
+remote: Counting objects: 100% (4541/4541), done.
+remote: Compressing objects: 100% (1952/1952), done.
+remote: Total 4541 (delta 2509), reused 4389 (delta 2462), pack-reused 0
+Receiving objects: 100% (4541/4541), 2.74 MiB | 17.13 MiB/s, done.
+Resolving deltas: 100% (2509/2509), done.
 ```
 
 ## Submitting Patches
@@ -18,8 +25,35 @@ Use GitHub Pull requests to change CNDP.
 
 C code should follow the CNDP coding standards.
 
-A .clang-format is available in the CNDP repo and can be run with ninja or a
-pre-commit hook is available and can be used to apply the clang format to
+A .clang-format file is available in the CNDP repo and can be run with ninja:
+
+``` bash
+$ ninja -C builddir clang-format
+ninja: Entering directory `builddir'
+[0/1] /usr/bin/meson --internal clangformat /home/cndp /home/cndp/builddir
+```
+
+Or with git-clang-format if it is installed:
+
+``` bash
+$ git clang-format --diff
+diff --git a/examples/cli/main.c b/examples/cli/main.c
+index 66b42e7..3f7a15a 100644
+--- a/examples/cli/main.c
++++ b/examples/cli/main.c
+@@ -62,7 +62,8 @@ __on_exit(int val, void *arg __cne_unused, int exit_type)
+ }
+
+ static int
+-sizeof_cmd(int argc, char **argv) {
++sizeof_cmd(int argc, char **argv)
++{
+     // clang-format off
+     struct struct_sizes ssizes[] = {
+         {"mmap_sizes_t", sizeof(mmap_sizes_t)},
+```
+
+Or a pre-commit hook is available and can be used to apply the clang format to
 modified files in a commit by doing the following before committing changes:
 
 ``` bash
@@ -87,6 +121,16 @@ int foobar(foo_t *foo) {
 Naming header files as xyz\_private.h and cne\_xyz.h is preferred. The .c files should be named
 xyz.c or cne\_xyz.c.
 
+### Braces for single line statements
+Do not use braces where a single statement (if, while, for, ...) will do:
+
+``` c
+if (foo)
+    do_this();
+else
+    do_that();
+```
+
 ## Maintainers
 
 The CNDP maintainers are as follows: