diff --git a/README.md b/README.md
index 19a276d7a8d5410c2dcf1e90e9a20a895a890d92..3bf646bf54bd5ceec25bede5efb7b49c4c83a250 100644
--- a/README.md
+++ b/README.md
@@ -106,13 +106,20 @@ libc. Create demo games using Zig.
 These compile tools must be available on your system and are used to build
 the Zig compiler itself:
 
+##### POSIX
+
  * gcc >= 5.0.0 or clang >= 3.6.0
  * cmake >= 2.8.5
 
+##### Windows
+
+ * Microsoft Visual Studio 2015
+
 #### Library Dependencies
 
 These libraries must be installed on your system, with the development files
-available. The Zig compiler links against them.
+available. The Zig compiler links against them. You have to use the same
+compiler for these libraries as you do to compile Zig.
 
  * LLVM, Clang, and LLD libraries == 5.x
 
diff --git a/doc/semantic_analysis.md b/doc/semantic_analysis.md
index 770b0f93b3e746a20d4443180dc73a7c65522bdf..6e860aac422892e81ca3eeded02a868971a3463a 100644
--- a/doc/semantic_analysis.md
+++ b/doc/semantic_analysis.md
@@ -6,8 +6,8 @@ choose to add more files to the compilation, for example bootstrap.zig which
 contains the code that calls main.
 
 Our goal now is to treat everything that is marked with the `export` keyword
-as a root node, and then then parse and semantically analyze as little as
-possible in order to fulfill these exports.
+as a root node, and then parse and semantically analyze as little as possible
+in order to fulfill these exports.
 
 So, some parts of the code very well may have uncaught semantic errors, but as
 long as the code is not referenced in any way, the compiler will not complain