Squashed commits:

- adding gitignore for ignoring examples build artefacts
- change formatting of example in 'Functions available to modules' section
- minor typos correction in 'Functions available to modules' section
- adding my name to 'Acknowledgements'

.gitignore

@@ -0,0 +1,6 @@
+*.o
+*.ko
+*cmd
+*.swp
+*mod*
+*.symvers