Fix grammar and spelling

Use notations 'Clang'/'GCC', 'Asciidoctor', 'Make', 'Git', 'CMake' when referring to the tool, not the command

Signed-off-by: Thomas Lauf <thomas.lauf@tngtech.com>

CONTRIBUTING.md

@@ -29,7 +29,7 @@ It is also the quickest way to get help, or confirm a bug.
 
 Review documentation: there are man pages, online articles, tutorials and so on, and these may contain errors, or they may not convey ideas in the best way.
 You can help improve it.
-Documentation is a separate effort from the codebase, and includes all websites, and all are available using git.
+Documentation is a separate effort from the codebase, and includes all websites, and all are available using Git.
 
 Take a look at the bug database, and help triage the bug list.
 Bug triage is very useful and much needed.

INSTALL

@@ -7,13 +7,13 @@ Please follow the instructions below to build and install Timewarrior from sourc
 
 In order to build Timewarrior, you will need:
 
-  - cmake (See https://cmake.org)
-  - make
-  - asciidoctor (for building documentation)
+  - CMake (See https://cmake.org)
+  - Make
+  - Asciidoctor (for building documentation)
 
 You will need a C++ compiler that supports full C++17, which includes:
-  - gcc 8
-  - clang 5
+  - GCC 8
+  - Clang 5
 
 
 # Basic Installation
@@ -47,14 +47,14 @@ These commands are explained below:
 
 # Build and configurations options
 
-You can customize the configuration run with cmake variables.
+You can customize the configuration run with CMake variables.
 This will modify the installation process:
 
 To change the installation directory you use the following configuration variable:
 
     $ cmake -DCMAKE_INSTALL_PREFIX=<path-to-installation-dir> .
 
-cmake configuration variables are applied with the -D option and consist of a <name> and a <value>:
+CMake configuration variables are applied with the -D option and consist of a <name> and a <value>:
 
     $ cmake -D<name>=<value> .
 
@@ -81,9 +81,9 @@ The corresponding `TIMEW_*` variables will be combined with `CMAKE_INSTALL_PREFI
 
 # Updating Timewarrior build
 
-This section concerns itself with the description of the procedure needed to update the local Timewarrior build from the 'timew' git repository.
+This section concerns itself with the description of the procedure needed to update the local Timewarrior build from the 'timew' Git repository.
 
-To update the local Timewarrior build, you need to update the git repository, including the `src/libshared` submodule.
+To update the local Timewarrior build, you need to update the Git repository, including the `src/libshared` submodule.
 To do that, run:
 
     $ git pull --recurse-submodules

README.md

@@ -37,10 +37,10 @@ Thanks to the community, there are binary packages available [here](https://time
 
 Building Timewarrior yourself requires
 
-* git
-* cmake (>= 3.8)
-* make
-* C++ compiler with full C++17 support, currently gcc 8+ or clang 5+ 
+* Git
+* CMake (>= 3.8)
+* Make
+* C++ compiler with full C++17 support, currently GCC 8+ or Clang 5+ 
 * Python 3 (for running the testsuite)
 * Asciidoctor (for creating documentation)
 

src/DatetimeParser.cpp

@@ -332,7 +332,7 @@ bool DatetimeParser::parse_named (Pig& pig)
 {
   auto checkpoint = pig.cursor ();
 
-  // Experimental handling of date phrases, such as "first monday in march".
+  // Experimental handling of date phrases, such as "first monday in March".
   // Note that this requires that phrases are delimited by EOS or WS.
   std::string token;
   std::vector <std::string> tokens;

src/data.cpp

@@ -146,8 +146,8 @@ std::vector <Interval> expandLatest (const Interval& latest, const Rules& rules)
       std::vector <Interval> flattened = flatten (latest, exclusions);
 
       // If flatten() converted the latest interval into a group of synthetic
-      // intervals, the number of returned intervals will be greater than 1,
-      // otherwise, it just returned the non-synthetic, latest interval.
+      // intervals, the number of returned intervals will be greater than 1.
+      // Otherwise, it just returned the non-synthetic, latest interval.
       if (flattened.size () > 1)
       {
         std::reverse (flattened.begin (), flattened.end ());