Merge pull request #508 from him2him2/fix-typos

Fix typos in documentation

Author: programmerjake

.github/PULL_REQUEST_TEMPLATE.md

@@ -10,7 +10,7 @@ For a given vector math operation on TxN, please add tests for interactions with
   - [ ] 0
 
 
-For a given vector math operation on TxN where T is a float, please add tests for test interactions with:
+For a given vector math operation on TxN where T is a float, please add tests for interactions with:
   - [ ] a really large number, larger than the mantissa
   - [ ] a really small "subnormal" number
   - [ ] NaN

beginners-guide.md

@@ -56,7 +56,7 @@ The list notes the bit widths available at each feature level, though the operat
 
 ### Selecting Additional Target Features
 
-If you want to enable support for a target feature within your build, generally you should use a [target-feature](https://rust-lang.github.io/packed_simd/perf-guide/target-feature/rustflags.html#target-feature) setting within you `RUSTFLAGS` setting.
+If you want to enable support for a target feature within your build, generally you should use a [target-feature](https://rust-lang.github.io/packed_simd/perf-guide/target-feature/rustflags.html#target-feature) setting within your `RUSTFLAGS` setting.
 
 If you know that you're targeting a specific CPU you can instead use the [target-cpu](https://rust-lang.github.io/packed_simd/perf-guide/target-feature/rustflags.html#target-cpu) flag and the compiler will enable the correct set of features for that CPU.