Merge pull request #502 from jethrogb/patch-1

Update conditional-compilation.md

Author: Havvy

src/conditional-compilation.md

@@ -163,16 +163,18 @@ Possible values:
 * `"16"`
 * `"32"`
 * `"64"`
+* `"128"`
 * `"ptr"`
 
 ### `target_vendor`
 
 Key-value option set once with the vendor of the target.
 
-Possible values:
+Example values:
 
 * `"apple"`
 * `"pc"`
+* `"sgx"`
 * `"unknown"`
 
 ### `test`
@@ -307,4 +309,4 @@ println!("I'm running on a {} machine!", machine_kind);
 [crate type]: linkage.html
 [expressions]: expressions.html
 [items]: items.html
-[metaitem]: attributes.html
+[metaitem]: attributes.html