refactor(doc): Simplify the Github badges #985

Job	Run time
Debug Build & Unit Tests (gcc)	3m 35s
Debug Build & Unit Tests (gcc, 32bit)	3m 47s
Debug Build & Unit Tests without Subscriptions (gcc)	2m 13s
Debug Build & Unit Tests with Diagnostics (gcc)	3m 23s
Debug Build & Unit Tests with multithreading (gcc)	3m 12s
Debug Build & Unit Tests with Alarms&Conditions (gcc)	13m 53s
Debug Build & Unit Tests (clang)	5m 39s
Debug Build & Unit Tests (tcc)	2m 40s
Encryption (MbedTLS) Build & Unit Tests (gcc)	2m 43s
PubSub Encryption (MbedTLS) Build & Unit Tests (gcc)	3m 20s
PubSub SKS Build & Unit Tests (gcc)	13m 28s
Encryption (OpenSSL) Build & Unit Tests (gcc)	3m 1s
Encryption (LibreSSL) Build & Unit Tests (gcc)	7m 49s
TPM Tool Build	3m 10s
Release Build	1m 31s
Amalgamation Build	1m 6s
Amalgamation Build with Multithreading	1m 1s
Valgrind Build & Unit Tests with MbedTLS (gcc)	18m 55s
Valgrind Build & Unit Tests with OpenSSL (gcc)	16m 58s
Valgrind Examples with MbedTLS (gcc)	1h 8m 45s
Valgrind Examples with OpenSSL (gcc)	1h 12m 26s
Clang Static Analyzer	4m 34s
Build All Companion Specifications	17m 19s
	4h 34m 28s

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