docs: minor spelling tweaks

Closes #276

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/iree/pull/276 from brettkoonce:minor-sp a6b591c684f56bce10360c57a2c22c9ca0d1d7a7
PiperOrigin-RevId: 287229289

docs/function_abi.md

diff --git a/docs/function_abi.md b/docs/function_abi.md
index bfd2002..ec9e1d1 100644
--- a/docs/function_abi.md
+++ b/docs/function_abi.md
@@ -6,7 +6,7 @@
 this requires additional metadata on top of the raw characteristics of a
 function. Where possible, this is done by attaching attributes to a function.
 
-*   `abi` : string indiciating the abi/calling convention in use
+*   `abi` : string indicating the abi/calling convention in use
 *   `abiv` : numeric version of the `abi`
 
 Each abi can require additional attributes as needed.
@@ -132,7 +132,7 @@
 compatible memory layout is on the host-language binding. However, often it is
 the most efficient to schedule this for execution on a device. In the future, it
 is anticipated that there will be a built-in pathway for scheduling such a
-conversion (which would allow pipelinining and offload of buffer conversions).
+conversion (which would allow pipelining and offload of buffer conversions).
 
 ##### Deferred result allocation