[docs] Fix some Sphinx warnings.

The docs now build cleanly. Yay!

The following warnings were fixed:

/home/sean/pg/llvm/llvm/docs/HowToReleaseLLVM.rst:364: WARNING: Enumerated list ends without a blank line; unexpected unindent.
/home/sean/pg/llvm/llvm/docs/InAlloca.rst:: WARNING: document isn't included in any toctree

/home/sean/pg/llvm/llvm/docs/CodingStandards.rst:85: WARNING: Title underline too short.

Supported C++11 Language and Library Features
-------------------------------------------
/home/sean/pg/llvm/llvm/docs/CodingStandards.rst:85: WARNING: Title underline too short.

Supported C++11 Language and Library Features
-------------------------------------------
/home/sean/pg/llvm/llvm/docs/GettingStarted.rst:185: WARNING: Explicit markup ends without a blank line; unexpected unindent.
/home/sean/pg/llvm/llvm/docs/GettingStarted.rst:565: WARNING: Explicit markup ends without a blank line; unexpected unindent.
/home/sean/pg/llvm/llvm/docs/GettingStarted.rst:567: WARNING: Block quote ends without a blank line; unexpected unindent.

llvm-svn: 202603
diff --git a/llvm/docs/CodingStandards.rst b/llvm/docs/CodingStandards.rst
index fdcc32e..431c9a9 100644
--- a/llvm/docs/CodingStandards.rst
+++ b/llvm/docs/CodingStandards.rst
@@ -82,7 +82,7 @@
   http://llvm.org/docs/ProgrammersManual.html
 
 Supported C++11 Language and Library Features
--------------------------------------------
+---------------------------------------------
 
 While LLVM, Clang, and LLD use C++11, not all features are available in all of
 the toolchains which we support. The set of features supported for use in LLVM
diff --git a/llvm/docs/GettingStarted.rst b/llvm/docs/GettingStarted.rst
index fc70164..52924a2 100644
--- a/llvm/docs/GettingStarted.rst
+++ b/llvm/docs/GettingStarted.rst
@@ -182,7 +182,7 @@
    #. If you want to make changes to the configure scripts, you will need GNU
       autoconf (2.60), and consequently, GNU M4 (version 1.4 or higher). You
       will also need automake (1.9.6). We only use aclocal from that package.
-#.Optional, adds compression / uncompression capabilities to selected LLVM
+   #. Optional, adds compression / uncompression capabilities to selected LLVM
       tools.
 
 Additionally, your compilation host is expected to have the usual plethora of
@@ -561,8 +561,9 @@
         pass = himitsu!
         port = 993
         sslverify = false
-  ;
-in English folder = "[Gmail]/Drafts"; example for Japanese, "Modified UTF-7" encoded.
+  ; in English
+        folder = "[Gmail]/Drafts"
+  ; example for Japanese, "Modified UTF-7" encoded.
         folder = "[Gmail]/&Tgtm+DBN-"
   ; example for Traditional Chinese
         folder = "[Gmail]/&g0l6Pw-"
diff --git a/llvm/docs/HowToReleaseLLVM.rst b/llvm/docs/HowToReleaseLLVM.rst
index f86c0ae..61aa9e8 100644
--- a/llvm/docs/HowToReleaseLLVM.rst
+++ b/llvm/docs/HowToReleaseLLVM.rst
@@ -361,6 +361,7 @@
 
 #. For dot releases all patches must mantain both API and ABI compatibility with
    the previous major release.  Only bugfixes will be accepted.
+
 Release Final Tasks
 -------------------
 
diff --git a/llvm/docs/index.rst b/llvm/docs/index.rst
index d040632..f288fdd1 100644
--- a/llvm/docs/index.rst
+++ b/llvm/docs/index.rst
@@ -235,6 +235,7 @@
    HowToUseAttributes
    NVPTXUsage
    StackMaps
+   InAlloca
 
 :doc:`WritingAnLLVMPass`
    Information on how to write LLVM transformations and analyses.