Changed doc to GitBook format + added doc

-Changed README.md to a complet GitBook doc.
-Added explanations about EvtGrpReceived functions.
-Corrected mistakes + reduced lines length.

Change-Id: I1a077ddf6acb520a9158de658d3c09b12a2029d4
Signed-off-by: Corentin Le Gall <corentinlgs@gmail.com>

1 files changed, 32 insertions, 0 deletions

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+# General Assertions
+
+* **_AFT.assertEquals(actual, expected)**
+
+    Assert that two values are equal.
+
+    For tables, the comparison is a deep comparison :
+
+  * number of elements must be the same
+  * tables must contain the same keys
+  * each key must contain the same values. The values are also compared recursively with deep comparison.
+
+    LuaUnit provides other table-related assertions, see [Table assertions](http://luaunit.readthedocs.io/en/luaunit_v3_2_1/#assert-table)
+
+* **_AFT.assertNotEquals(actual, expected)**
+
+    Assert that two values are different. The assertion fails if the two values are identical.
+
+    It also uses table deep comparison.
+
+* **_AFT.assertAlmostEquals(actual, expected, margin)**
+
+    Assert that two floating point numbers are almost equal.
+
+    When comparing floating point numbers, strict equality does not work.
+    Computer arithmetic is so that an operation that mathematically yields
+    1.00000000 might yield 0.999999999999 in lua . That’s why you need an
+    almost equals comparison, where you specify the error margin.
+
+* **_AFT.assertNotAlmostEquals(actual, expected, margin)**
+
+    Assert that two floating point numbers are not almost equal.
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