copied over logic from cortex-M4 example repo

I copy pastaed some of the linker setup from another repo I found. Had
to change some stuff as their directory setup is differnt than mine.

linker.ld

@@ -2,7 +2,9 @@
  * Filename: linker.ld
  * Micro-Controller: stm32f103c8t6
  * Cortex-M3 and Cortex-M4 only need to be 4byte aligned where as
- * other's might need 8byte or something differnt.
+ * other's might need 8byte or something different.
+ *
+ * The M3/M4 are ARMv7 and ARMv7E-M respectively.
  */
 
 
@@ -50,6 +52,7 @@ MEMORY
 floating_point = 0;
 SECTIONS
 {
+
     /* Code section, mapped to Flash memory */
     .text :
     {