doc: minor README tweak

I missed this earlier.

Signed-off-by: Paul Moore <[email protected]>

Author: pcmoore

README

@@ -37,7 +37,7 @@ Using go get:
 
 * Testing the Library
 
-Number of test and lint related recipes are provided in the Makefile, if
+A number of tests and lint related recipes are provided in the Makefile, if
 you want to run the standard regression tests, you can excute the following:
 
 	$ make check
@@ -46,3 +46,4 @@ In order to execute the 'make lint' recipe the 'golint' tool is needed, it
 can be found at:
 
 	-> https://github.com/golang/lint
+