complete missing essential fields (home, state) on entries

games/library/crypto.md

@@ -5,6 +5,7 @@ _C++ class library of cryptographic schemes._
 - Home: https://cryptopp.com/
 - Media: https://en.wikipedia.org/wiki/Crypto%2B%2B
 - Download: https://cryptopp.com/#download
+- State: mature
 - Code repository: https://github.com/weidai11/cryptopp
 - Code language: C++
 - Code license: Boost-1.0

games/library/open_al.md

@@ -4,6 +4,7 @@ _Cross-platform audio application programming interface (API)._
 
 - Home: http://www.openal.org/
 - Media: https://en.wikipedia.org/wiki/OpenAL
+- State: mature
 - Code repository: http://www.openal.org/downloads/
 - Code license: Proprietary
 - Code license details: since v1.1, LGPL before

games/library/open_al_soft.md

@@ -4,6 +4,7 @@ _Software implementation of the OpenAL 3D audio API._
 
 - Home: http://kcat.strangesoft.net/openal.html
 - Media: https://en.wikipedia.org/wiki/OpenAL#Implementations
+- State: mature
 - Code repository: http://repo.or.cz/openal-soft.git
 - Code language: C
 - Code license: LGPL-2.0

games/library/yaml_cpp.md

@@ -3,7 +3,8 @@
 _YAML parser and emitter in C++ matching the YAML 1.2 spec._
 
 - Home: https://github.com/jbeder/yaml-cpp
-- Code repository:https://github.com/jbeder/yaml-cpp
+- State: mature
+- Code repository: https://github.com/jbeder/yaml-cpp
 - Code language: C++
 - Code license: MIT