Add suggested fixes from ebahapo

Author: rincewind

riscv-elf.md

@@ -949,6 +949,6 @@ there is no differentiation between ILP32 and LP64 abis.
 
 * **ABI**: [Application binary interface](https://en.wikipedia.org/wiki/Application_binary_interface).
     Here a combination of the **gABI** and the **psABI**
+* **gABI**: generic ABI
 * **psABI**: processor specific ABI
-* **gABI**: general ABI